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399b FAQ — Frequently Asked Questions & Detailed Answers

Whether it's login, registration, payments, bonuses, or betting — you'll find the answers here. 399b's most frequently asked questions are all in one place, laid out clearly for easy reference.

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Frequently Asked Questions
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Why Choose 399b

Top Benefits of 399b

Millions of members across Bangladesh use 399b every day for its trustworthiness, convenience, and security.

⚡
Fast Payments
Withdraw in 15 Minutes

Get your money in as little as 15 minutes via bKash, Nagad, Rocket, or Upay. No hidden charges — straight to your mobile wallet.

🛡️
Security
SSL Encrypted Platform

Your account and data are fully protected with 256-bit SSL encryption, two-factor authentication, and advanced firewall technology.

🎁
Bonus
Regular Bonuses & Offers

Welcome bonuses, daily cashback, reload bonuses, and voucher codes — 399b members get fresh offers every day.

📱
Mobile First
Play on Any Device

399b runs smoothly on any smartphone — Android or iOS. No separate app needed; just play directly from your browser.

🏏
Sports
Live Betting on 30+ Sports

Enjoy real-time odds and live betting across more than 30 sports at 399b, including cricket, football, kabaddi, and tennis.

💬
Support
24/7 Bangla Support

Get support in English via live chat and email, 24 hours a day, 7 days a week. Fast resolution guaranteed.

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Account & Registration

To register with 399b, you'll need a valid email address, a mobile number, and your name. You must be 18 or older. Registration is completely free and takes just 2–3 minutes. Register Now and claim your welcome bonus.

Each person may only hold one 399b account. Creating multiple accounts is a violation of 399b's Terms & Conditions and may result in account suspension. For more details, please refer to our Terms & Conditions View page.

login page and click the "Forgot password?" link. Enter your registered email address and a password reset link will be sent within a few minutes. If you don't see the email, check your spam folder. For further help, contact support.

Account verification is typically completed within 24 hours. However, if all required information and documents are submitted correctly, it can often be done within just a few hours. A confirmation email is sent once verification is complete.

Yes, you can request a temporary suspension or permanent closure of your account at any time. Simply email support@399b.ws or let us know via live chat. Responsible Gaming You can find more information on this on the page.

Yes, you can update your email address and mobile number from your account settings. Re-verification may be required after making changes, and the process may take some time for security reasons.

First, make sure your username/email and password are correct. Check that Caps Lock is off. Clear your browser cache and cookies. Try a different browser or device. If the issue persists, reset your password or contact support.
Payments & Transactions

399b supports deposits and withdrawals via all major mobile banking methods, including bKash, Nagad, Rocket, and Upay. Bank transfers are also available. Fast and secure transactions are guaranteed across all methods.

The minimum deposit at 399b varies by payment method. Mobile banking deposits generally start from 100 BDT. Visit the payment page for maximum limits and full details.

Most withdrawal requests are processed within 15 minutes to 1 hour. Bank transfers may take 1–3 business days. Minor delays can occur during peak hours, but all withdrawals are completed within 24 hours at most.

Deposits typically arrive within 5–10 minutes. If yours hasn't shown up after that, email support@399b.ws with your payment transaction ID, or reach out via live chat. Our team will resolve it quickly.

399b generally does not charge any platform fees on withdrawals. However, your mobile banking provider may apply a small transaction fee in accordance with their own policies. No deductions are made on 399b's end.

Daily withdrawal limits vary depending on your account verification level and payment method. Fully verified accounts have significantly higher limits. Check your account settings or contact support for the exact limits that apply to you.

Deposits are generally non-cancellable once completed. However, if the wrong amount was transferred, contact support immediately and we'll review the situation and try to find the best possible solution.

399b currently prioritises Bangladeshi mobile banking and bank transfers. For updates on cryptocurrency payment options, keep an eye on our site and stay in touch with our support team.
Bonuses & Promotions

As a new member Registration Once you complete registration and make your first deposit, the welcome bonus is automatically credited to your account. To learn about the bonus amount and terms, visit the Bonus Page View.

Each bonus comes with specific wagering requirements. In general, you'll need to wager the bonus amount a set number of times before it can be withdrawn. For full details, see the On the Bonus Page & In the Terms & Conditions will receive.

After logging in, go to the "Voucher" or "Promo Code" section in your account dashboard and enter your code. To see active voucher codes and offers, visit our Voucher Page Visit.

When you place bets on qualifying days, a portion of your net losses is automatically credited to your account as cashback the following morning. No separate claim is needed. Details On the Bonus Page View.

Yes, 399b has a referral program. Refer a friend and when they sign up and make their first deposit, you'll receive a bonus. Your referral link is available from your account dashboard.

Once a bonus expires, any unused amount is automatically forfeited. Make sure to use your bonus within the specified timeframe after receiving it. You can check the expiry date of each bonus in the bonus section of your account.
Sports Betting

399b offers betting on over 30 sports, including cricket, football, kabaddi, tennis, basketball, volleyball, hockey, and badminton. All major tournaments are covered — from the Bangladesh Premier League and IPL to the World Cup. Learn more On the Sports Betting page View.

Live betting lets you place wagers in real time while a match is in progress. You can bet based on the score, game situation, and how the match is unfolding. Odds update every moment, so quick decisions are key.

Once a match or event ends and the result is confirmed, your winnings are automatically credited to your account. Your balance is typically updated within minutes of the match finishing.

Once a bet is confirmed, it generally cannot be cancelled. However, some events offer a cashout option, which lets you partially or fully cash out your bet while the match is still in progress.

Odds are determined by team strength, form, home advantage, and various statistics. With decimal odds, multiply your stake by the odds to calculate your total potential payout. On the Sports Betting page detailed guide is available.

If a match or event is fully cancelled, the full bet amount is generally refunded to your account. Partial cancellations are handled in accordance with our policy. Terms & Conditions View.

A parlay or accumulator bet combines multiple matches or events into a single wager. If all selections win, the odds multiply to deliver a much larger payout — but if even one leg loses, the entire bet is lost.
Online Games

399b offers slots, Live Casino, card games, fishing games, lottery, and much more — all running smoothly on both mobile and desktop. On the Popular Games page View the full list.

Yes, 399b's Live Casino features professional dealers you can play with in real time. High-definition video streaming brings you the full feel of a real casino.

Yes, all games on 399b use certified RNG (Random Number Generator) technology, ensuring that every result is completely random and unbiased. This is regularly verified by independent third-party auditors.

Many games offer a demo or free play mode, letting you learn the ropes and practice without using real money. It's a great way to get comfortable with new games.

To play the 399b lottery, purchase a ticket and wait for the draw at the scheduled time. All draws are fully random and transparent. Any winnings are automatically credited to your account. Learn more On the Lottery page View.

If your connection drops, the game session is temporarily paused. Reconnecting usually lets you resume from where you left off, though the exact policy may vary depending on the specific game and circumstances.
Security & Privacy

Yes, 399b uses top-grade SSL encryption. All your data is stored encrypted and is never shared with third parties. Learn more in our Privacy Policy will receive.

Go to your account settings, navigate to the "Security" section, and enable two-factor authentication (2FA). You can set up verification via OTP to your mobile number or through an authenticator app. This adds an extra layer of protection to your account.

If you suspect unauthorized access, change your password immediately and notify us at support@399b.ws. Our security team will investigate your account and take the necessary steps. You can also request a temporary account lock.

399b operates under an international gaming licence. All transactions are regulated and verifiable. Our platform upholds a safe, transparent, and responsible gaming policy.
Support & Contact

There are three ways to reach support: 1) Live chat on the website — fastest response. 2) Email: support@399b.ws — for detailed issues. 3) The contact form on the site. Bengali-language support is available through all channels.

399b's support team is active 24/7, every day of the week. You'll get a response via live chat even on holidays or late at night. For urgent issues, live chat is your fastest option.

For any complaint, send a detailed message to support@399b.ws including your account ID, the date of the issue, and a description of what happened. We aim to respond within 48 hours, with urgent matters handled more quickly.

Start by checking your internet connection. Refresh your browser and clear the cache. Try switching to a different network or device. If the issue persists, contact support — our technical team will resolve it promptly.
Quick Links
Important Information
Age requirement: 399b is for members aged 18 and above only.
Responsible Gaming: If you're experiencing any issues, please reach our Responsible Gaming View page.
Contact: support@399b.ws — email us with any questions.
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Your Questions About 399b Answered — A Complete Guide

It's natural to have questions when using an online betting and gaming platform. 399b's FAQ page is designed with Bangladeshi members in mind — providing clear, straightforward answers to the most commonly asked questions.

399b is more than just a betting platform — it's the trusted gaming destination for millions of members across Bangladesh. Every day, thousands of people join 399b for cricket betting, football betting, slots, Live Casino, and lottery. To become part of this community, start with the right information.

Please Note: 399b is purely for entertainment purposes. Please play responsibly and within your means. If you need help, contact our Responsible Gaming View page.

Registration Process can feel overwhelming for first-timers. But signing up at 399b is actually very simple — just a few details and your account is ready in minutes. Anyone aged 18 or above is welcome to join. All member information is kept strictly private and secure.

Payments & Transactions is one of the most frequently asked topics. 399b supports all major mobile banking channels, including bKash, Nagad, Rocket, and Upay. Deposits typically arrive within 5–10 minutes, and withdrawals are processed within 15 minutes to 1 hour. No hidden charges — you keep everything you win.

Bonuses & Promotions When it comes to bonuses, 399b consistently brings exciting offers for its members. From welcome bonuses to daily cashback, reload bonuses, and special voucher codes — being on 399b means opportunity after opportunity. Each bonus has its own terms and conditions, so it's worth reading them before you claim.

Sports Betting is one of 399b's most popular sections. You can place live bets on all major matches — from the Cricket World Cup, IPL, and BPL to top football tournaments. 399b's odds are competitive and updated in real time.

Security 399b makes no compromises on security. Advanced encryption, two-factor authentication, and regular security audits keep every member's account protected. Your personal information and funds are completely safe.

If you can't find the answer you're looking for on this FAQ page, reach out to our support team directly. 399b's goal is to give every member the best possible experience — whether you're playing or need help, we're always here for you.

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