Please read these Terms and Conditions carefully before using the 399b platform. By registering, you are deemed to have accepted all of the terms below.
Last Updated: January 2026Use of 399b by anyone under 18 is strictly prohibited.
These Terms and Conditions apply to all users of the 399b platform (https://399b.onl). Registering or accessing the platform means you have fully accepted all of the terms below.
399b is an online gaming and betting platform built specifically for Bangladeshi users. These Terms and Conditions form a legally binding agreement between 399b and its users. By accessing or using the platform, you confirm that you have read and fully accepted these terms.
399b reserves the right to update these Terms and Conditions at any time. When changes are made, a notice will be posted on the platform and the "Last Updated" date will be revised. Continued use of the platform after any changes constitutes your acceptance of the updated terms.
To create an account on 399b, you must complete the registration form with accurate and complete information. Each person may only hold one account. If multiple accounts are found, all will be closed and any balance may be forfeited.
For security purposes, 399b may request any of the following documents for account verification at any time:
Withdrawals may be held until verification is complete. Providing inaccurate information may result in account suspension.
Keep your account password and login details strictly confidential. Allowing anyone else to access your account is a violation of these Terms and Conditions.
399b is strictly for users aged 18 and above. If a minor registers using false information, all transactions and winnings associated with that account will be forfeited.
Strictly Prohibited: Allowing anyone under 18 to use 399b may be a punishable offence. We maintain a strict zero-tolerance policy on age verification.
399b supports deposits and withdrawals via bKash, Nagad, and Rocket. All transactions are processed in Bangladeshi Taka (BDT). Deposits are typically credited to your account within minutes.
399b does not charge any transaction fees. However, your payment provider (bKash/Nagad/Rocket) may apply their own charges.
399b regularly offers a variety of bonuses and promotional deals. Each bonus comes with its own terms, and failure to comply may result in the bonus being forfeited.
A wagering requirement is the amount you must bet before withdrawing bonus funds. For example, a BDT 1,000 bonus with a 10x wagering requirement means you need to place BDT 10,000 in bets before making a withdrawal.
Any attempt to abuse bonuses or claim them through multiple accounts will result in all associated accounts being suspended.
399b has specific rules for Sports Betting, slots, bingo, and other games. Each game or betting market has its own payout structure and rules, which are displayed when the game loads.
The following activities are strictly prohibited on the 399b platform. Any violation will result in immediate account termination and possible forfeiture of account balance:
Warning: If evidence of fraud or illegal activity is found, 399b is obligated to report it to the relevant law enforcement authorities.
399b takes your privacy seriously. To learn how we collect, use, and protect your personal information, please read our Privacy Policy Read the page.
399b believes gaming should be a form of entertainment, not a solution to financial problems. We encourage all users to play responsibly.
If you feel you are losing control over your gaming, please contact our Responsible Play Visit the page or contact us via live chat.
399b reserves the right to suspend or terminate any account at any time and without prior notice. Accounts are typically closed for the following reasons:
Users may also request account closure at any time by contacting customer support. Any valid balance remaining at the time of closure will be refunded.
399b reserves the right to modify these Terms and Conditions, in part or in full, at any time. For significant changes, we will notify users by email or platform notification.
If you have any questions or concerns about these Terms and Conditions, please contact our support team. We typically respond within 24 hours.
399b is more than just a gaming platform — we are committed to providing a trusted and safe environment for players in Bangladesh.
The 399b Terms and Conditions are written in plain language so every user can easily understand them. There are no hidden terms.
Fully secure deposits and withdrawals via bKash, Nagad, and Rocket. All data is protected with SSL encryption.
The account verification process is quick and hassle-free. Once verified, withdrawals become even smoother.
All bonus terms are clearly stated upfront. No surprises — just transparent offers.
Deposit limits, self-exclusion, and reality checks — all the tools you need to stay in control of your gaming.
Our support team is always ready to help. Get fast assistance via live chat or email.
Done reading the 399b Terms and Conditions? Register now and enjoy the best online gaming experience in Bangladesh.