❓ FAQ
Answers to all your questions at 399o
Browse the sections below for quick, clear answers on deposits, bonuses, security, and betting.
Players using 399o often have various questions — how to deposit money, what the bonus terms are, how to keep their account secure, and how to read betting markets. This page organises the most frequently asked questions by category so you can find what you need easily. If you cannot find the answer to your question, contact us directly via our 24/7 live chat or email.
Limits & Controls
The minimum deposit amount across all payment methods at 399o is ৳100. Whether you use bKash, Nagad, Rocket, or bank transfer, the same limit applies. Starting with a small deposit is especially useful for new players, as it lets you get familiar with the platform without taking on large risk.
There are some common signs to watch out for: spending beyond your budget, repeatedly playing to chase lost money, hiding your gaming from family or friends, losing focus at work or studies, and feeling restless when you are not playing. If you notice these signs, take a break and seek help if needed.
No. 399o strictly enforces a 21+ age requirement. Only individuals aged 21 or above may open an account and play. Proof of age may be requested during account verification. Any account found to belong to a minor will be closed immediately.
A cooling-off period is a temporary break where you can pause your account for a set amount of time. Self-exclusion is a longer-term measure where your account is fully deactivated for a specified period. Contact our support team to use either option — they will help complete the process quickly.
In Bangladesh, the national mental health helpline and various community support groups are available. Talking to family or trusted friends can also help. The 399o support team is always ready to provide guidance on responsible gaming — reach us via live chat or at [email protected].
Cricket & Sports Betting
Log in to 399o and go to the Sports section to see markets for BPL, T20 World Cup, IPL, and other international cricket matches. Choose your preferred match and market, select your prediction, enter the amount, and confirm your bet. The rules and potential returns for each market are displayed on screen.
If a match is abandoned or declared no-result due to rain or any other reason, bets are generally refunded. However, in some markets the result may be determined using the Duckworth-Lewis method. It is a good idea to check the specific settlement rules for each market before placing your bet, as terms may vary.
Yes, live in-play betting is available at 399o. Markets continue to update after the match starts and you can place bets in real time. For example, in a hypothetical T20 match between Bangladesh and India, you can bet on the next wicket market after the powerplay.
Decimal odds are straightforward: multiply your bet amount by the odds to get the total return. For example, if the odds are 2.50 and you bet ৳100, your total return if you win is ৳250 (profit of ৳150). Higher odds mean a lower chance of winning but a larger reward. Lower odds mean a more likely outcome but a smaller reward.
The most popular cricket markets are: match winner (which team will win), toss winner, time of first wicket, runs in a specific over (over/under), series winner, and top run scorer. Odds for each market change according to match conditions. Visit the 399o cricket page for more details.
Stay Safe
For a strong password, use at least 12 characters and combine uppercase and lowercase letters, numbers, and special characters (such as @, #, !). Avoid your name, date of birth, or simple words. Do not use your 399o password on any other site, and make a habit of changing it regularly.
If you notice unusual activity on your account — such as unknown transactions, unfamiliar logins, or password changes — change your password immediately and notify our support team. Contact us via live chat or at [email protected]. Your account can be temporarily locked if needed.
Always check that the address bar in your browser shows https://399o.lat. Fake sites often use similar-looking domains (such as 399o.com or 3990.lat). Instead of clicking links in emails or messages, type the address directly into your browser. If in doubt, ask us at [email protected].
Yes. All data transmitted on 399o is secured with SSL (Secure Sockets Layer) encryption. This means your personal information, password, and financial transactions are sent in encrypted form and cannot be read by third parties. If you see a padlock icon (🔒) in your browser, the connection is secure.
No 399o staff member or representative will ever ask for your OTP, bKash PIN, Nagad PIN, or bank password. If anyone asks for these, it is fraudulent. End the conversation immediately and report it to us at [email protected]. Do not share this information under any circumstances.
Bonus Terms
No, the welcome bonus applies only once per player — at the time of the first deposit. Attempting to claim the bonus multiple times by opening multiple accounts is a violation of the rules and may result in account closure. After receiving the bonus, log in and contact support to learn about upcoming promotional offers.
On your first deposit, 399o automatically gives a 120% bonus up to ৳5,000. For example: deposit ৳1,000 and receive a ৳1,200 bonus, giving a total balance of ৳2,200. To withdraw bonus winnings, you must wager 10 times the bonus amount. So for a ৳1,200 bonus, you need to complete ৳12,000 in wagers.
After accepting a bonus, you can request cancellation through support. However, if the bonus is cancelled, any winnings from that bonus will also be forfeited. It is worth understanding the potential impact before cancelling. Contact the support team for more details — they will review your account and advise you accordingly.
Bonuses generally have a limited validity period, and if the wagering requirement is not completed within that time the bonus expires. Each bonus has its own specific terms, which are shown when you claim it. Ask the support team in advance about the validity period of any promotion.
How to Deposit
Log in and go to the Cashier or Deposit section. Select bKash and enter the amount (minimum ৳100). Send money from your bKash app to the 399o bKash number shown. Copy the transaction ID and paste it into the designated field on the website to confirm the deposit. Your balance usually updates within a few minutes.
399o currently offers four deposit methods: bKash, Nagad, Rocket, and bank transfer. For bank transfer, major Bangladeshi banks such as Dutch-Bangla Bank, BRAC Bank, and Islami Bank can be used. The minimum deposit amount is ৳100 for all methods.
Yes, Nagad is fully supported. The process is the same as bKash: go to the Deposit section, select Nagad, enter the amount (minimum ৳100), complete the payment to the 399o Nagad number provided, and confirm the deposit with the transaction ID. Payment can be made through the Nagad app or USSD code.
399o does not deduct any additional charges on deposits. However, your mobile banking service (bKash, Nagad, Rocket) or bank may apply its own service charge. Check the terms of the relevant service provider for details on these charges. Contact bKash or Nagad directly for accurate charge information.
Deposits usually appear in your balance within a few minutes. If it has not updated after 15 minutes, contact us via live chat or at [email protected] with your transaction ID and amount. If you have a screenshot of the payment, send that too — the support team will resolve the issue quickly.
More questions?
Our support team is with you 24 hours a day, 7 days a week — in Bengali and English.
24/7 Live Chat
[email protected]