399b's Most Asked Questions Answered

399b works fully on any modern device — Android smartphones, iPhones, iPads, Windows laptops, or Macs. No separate app download is needed; just open your preferred browser (Chrome, Firefox, Safari) and go straight to the site. Keeping your browser updated will make your gaming experience smoother.

If the site is running slowly, start by clearing your browser's cache and cookies. In Chrome, you can do this from Settings → Privacy and security → Clear browsing data. Then refresh the page. If the problem persists, check your internet connection or try a different browser. Games run better on a WiFi connection than on mobile data.

On Android, open Chrome and go to the site, then tap the three-dot menu at the top and select "Add to Home screen". On iPhone, tap the share icon in Safari and choose "Add to Home Screen". This saves the 399b icon directly to your home screen and it will open like an app, so you won't need to type the address in your browser each time.

Yes, all games on 399b can be played fully in a mobile browser. Slots, live casino, fishing games — all are designed to work with a touchscreen. However, keep a stable internet connection when playing live dealer games, as live video streaming requires more bandwidth.

Don't worry if your connection suddenly cuts out. 399b's game servers save your session. Once your internet is back, refresh the page or log in again — you can pick up right where you left off. If any round or balance appears to be missing, contact live chat and the support team will verify the transaction and resolve the issue.

The minimum deposit at 399b is ৳300 across all payment methods. Whether you use bKash, Nagad, Rocket, Upay, or bank transfer, the same limit applies. Players on a small budget can get started easily and deposit in stages as needed.

399b itself does not charge any deposit fee. However, mobile banking services like bKash or Nagad may apply their own transfer charges — this is outside 399b's control. Bank transfers may also carry intermediary fees from the bank. So check the fee policy of your payment app or bank before making a transaction.

Log in to your account, go to the deposit page, and select Nagad as the payment method. Enter the amount and send money to the displayed Nagad number using your Nagad app or USSD (*167#). Keep the transaction reference number. The amount is usually added to your balance within a few minutes.

First, refresh the page and wait a few minutes. Sometimes there can be a short delay due to the bank or mobile banking network. If more than 15 minutes have passed, contact live chat with a screenshot of the transaction and the reference number. The support team will verify it quickly and resolve the issue.

399b supports Bangladesh's most popular payment methods: bKash, Nagad, Rocket, Upay and Bank Transfer (including Dutch-Bangla Bank, BRAC Bank, Islami Bank, and other major banks). The minimum deposit of ৳300 applies equally across all methods.

Yes, 399b uses the highest standard of SSL encryption — the same technology used by banking sites. Your password, payment details, and personal data are stored encrypted on the server. Your information is never sold or shared with any third party. If you see "https://" in the page URL, your connection is secure.

To create a strong, unique password, use at least 10 characters that include uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and special characters (!@#$). Do not use your date of birth or your own name as a password. Do not use your 399b password on any other site, and change it regularly.

Before each session, carefully check the URL in your browser's address bar — the correct address is 399b.lat. Fake sites can be created with slight spelling changes (such as 399b.net or 399bb.lat). Be cautious if any site suddenly offers unusual bonuses or asks for your password. Always access the site from a bookmark or by typing the URL directly.

If you think there has been unauthorized access to your account, change your password immediately and notify 399b via live chat. The support team can temporarily lock the account and review the login history. They will then help you recover the account after verifying your identity.

Your OTP (one-time password) and mobile banking PIN are completely personal. No 399b staff member will ever ask you for your OTP or PIN. If anyone asks for this information — by phone, message, or online — they are definitely a fraudster. Sharing this information can lead to money being stolen from your account and your mobile banking account.

399b has 4 VIP levels in total: Bronze, Silver, Gold and Platinum. Each level has a different weekly cashback rate. Starting from Bronze, you can move up gradually and the benefits increase at each level.

Cashback rates are set by level: Bronze — up to 0.2% weekly cashback; Silver — up to 0.5%; Gold — up to 0.8%; and Platinum — up to 1.0% weekly cashback. Cashback is added to your account automatically every week.

By playing regularly and keeping your account consistently active, you can gradually move up to higher levels. The more you play, the faster you progress. Contact the support team via live chat for detailed criteria on advancing to each level — they can tell you your current standing.

In addition to weekly cashback, members at higher VIP levels receive priority support, early access to special promotions, and personalized offers. Platinum members enjoy the most benefits. Contact the support team directly for specific details.

There are two ways to contact 399b: Live Chat — real-time chat directly on the site or app; and Email — write to [email protected]. Support is available in both Bengali and English through both channels. For urgent issues, live chat is the most effective option.

399b's support team is active seven days a week, twenty-four hours a day — that is, 24/7. Support is available even on Eid, Puja, or any public holiday. If you run into a problem late at night or early in the morning, feel free to send a message on live chat.

To get a faster resolution, have a few pieces of information ready in advance: your registered email or phone number, the exact time the issue occurred (Bangladesh time), the transaction reference number or a screenshot if it is a payment-related issue, and a brief description of the problem. Having these on hand allows the support team to help you much more quickly.

Yes, 399b's support team provides full support in Bengali. You do not need to write or speak in English. Being able to communicate with Bangladeshi players in their own language is one of the key advantages of 399b. English support is also available — write in whichever language you are comfortable with.

When you email [email protected], the support team tries to reply as quickly as possible. However, for urgent issues, using live chat is best since you get an immediate response there. Including detailed descriptions and screenshots in your email will make the reply more accurate.