Mobile / Sports
At 4b77, your account data — including wallet activity through Nagad or Bank Transfer and your device session records — is handled according to the practices described in this policy. Access to our platform and the scope of data we collect depends on your local law and the eligible regions in which we operate.
This policy describes how 4b77 collects, stores and uses information when you interact with our platform — from the moment you open an account to every transaction record tied to your wallet. When you deposit through Nagad or complete a Bank Transfer, we log the reference details, the timestamp and the account state at the time of that transaction. We do not sell your personal data to third parties. We retain transaction records for the period required under applicable rules, which may vary depending on your eligible region and local law. Cookies and device identifiers are used to keep your session active and to remember your preferences — such as your preferred payment route — across visits on the same device. If you access the platform through a mobile browser, your device type and session activity form part of the record we hold. This is standard practice for account-based platforms. You can ask us to explain what data we hold by contacting support through the channels published on this site. Nothing in this policy constitutes a legal guarantee; the exact obligations applicable to your account depend on the jurisdiction from which you access the platform and whether that access falls within our eligible regions.
Not every interaction with 4b77 falls under the same data rules. The scope of this policy is defined by where you access the platform, what account actions you take and whether third-party services are involved in any part of that journey. Understanding the boundary helps you know which data practices apply to you and which sit outside our direct control.
When you log in and navigate the platform, we collect session data tied to your account. This includes your device type, login timestamp and the pages or game lobbies you visited. This data is linked to your account record and held according to our retention schedule.
Deposits and withdrawals processed through Nagad or Bank Transfer generate transaction records that we store in your account history. These records include reference codes, amounts and timestamps. They are visible in your signed-in account area and are not shared with unaffiliated parties.
Browsing game lobbies, reading policy pages or exploring the sportsbook section generates anonymised activity data used to maintain platform performance. This data is not linked to your personal identity unless you are signed in to an active account at the time.
Payment rails like Nagad and Bank Transfer, as well as game content from studios including Pragmatic Play and Spadegaming, operate under their own data terms. Once a transaction or game session passes to a third-party system, that party's privacy practices govern — not ours. We encourage you to review those terms separately.
You have real choices about the data we hold on your account. These are not abstract entitlements — they map to specific steps you can take through your signed-in account area or by contacting our support team. Start in your account settings to review the transaction history linked to your Nagad or Bank Transfer activity. If a record looks incorrect — a mismatched reference number, a session logged to the wrong device — you can flag it by opening a support request with the relevant transaction details. We will check the record against our system and update it where a correction is warranted. The exact scope of your rights may depend on the eligible region from which you access the platform and what local law requires. Where a right applies, we aim to respond through the published support channel. You cannot instruct us to delete records that we are required to retain under applicable rules, but you can ask us to explain precisely why a record is kept and for how long.
Open your signed-in account area and navigate to the transaction history section. Nagad and Bank Transfer records are listed with reference codes and timestamps. If a record is missing or appears incorrect, note the reference before contacting support.
Account details such as your registered contact information can be updated through the account settings page. For changes that require identity verification, follow the steps shown in the verification section of your account — do not send identity documents through chat unless that channel is explicitly confirmed as secure.
If you have a question about how a specific data point was collected or how long it will be retained, send a written query through the support route published on this site. Include your account reference so we can locate the relevant record without delay.
For any data-related concern — access, correction or a question about third-party handling through Nagad or Bank Transfer — our support team is the right starting point. Use the contact method listed in the support section of this page.
If you have a question about this policy, your account data or a transaction record, reach out through one of the contact routes published on the 4b77 site. We handle policy queries through the same channels as account support — there is no separate privacy desk. Use the route that suits how you are accessing the platform, whether that is from a mobile browser or desktop.
Open the chat widget from any page while signed in. Describe your data or policy question and include your account reference number so the agent can locate your record without asking you to repeat details.
Send a written query to the support email address published in the contact section of this site. For data-related requests, include your account identifier and the specific record or field you are asking about.
The help centre linked from the footer contains published answers to common policy questions, including how we handle Nagad and Bank Transfer transaction data and what our retention period covers.
Handling your account data responsibly is not a footnote — it is built into how the platform operates, from the way we store Nagad payment references to how we manage session cookies on your mobile device. Here is what we actually do across the four main areas that affect your account.
We use cookies to maintain your login session and remember your payment preferences across visits on the same device. You can clear these through your browser settings, but doing so will end your current session and may require you to re-enter your payment route preferences at next login.
Nagad and Bank Transfer transaction records are retained for the period required under the rules applicable to your eligible region. After that period, records are archived or deleted according to our internal schedule. You can ask for the specific retention period that applies to your account via support.
Your account credentials are stored in encrypted form. We do not log your full payment credentials — only the reference identifiers that confirm a transaction was completed. If we detect unusual login activity on your account, we may require you to verify your identity through the steps shown in your account settings.
If the scope of this policy changes in a way that affects your account, we will notify you through the contact method registered on your account. You can also check the current version of this policy at any time from the footer link on this site.
The questions below come from real account holders asking about data handling, their rights and what happens to transaction records. If your question is not here, contact us through the support routes listed above.
We collect the information you provide during account registration — your contact details and identity verification documents where required — along with device and session data generated each time you log in. Transaction references from Nagad or Bank Transfer deposits are also linked to your account record. Availability and scope depend on your eligible region and local law.
Your transaction history, session records and account details are accessible through your signed-in account area. For a broader summary of what we hold, send a written request through email support or live chat, including your account reference. We will confirm what records are held and their retention period.
We do not sell your personal data. Transaction data passes to payment rails — Nagad and Bank Transfer — as part of processing your deposit or withdrawal. Game content providers such as Pragmatic Play and Spadegaming may receive session identifiers to deliver game content. Each third party operates under its own data terms.
Transaction records are retained for the period required under the rules applicable to your eligible region. The exact duration depends on local law and may differ by account type. You can ask our support team for the specific retention schedule that applies to your account — open a request via the published email or live chat route.
Minor details can be updated directly through the account settings page when you are signed in. For corrections that require identity verification — such as a change to your registered name — follow the steps shown in the verification section of your account. Do not send identity documents through a channel unless it is explicitly confirmed as secure.
We retain transaction and account records for the period required under applicable rules, even after account activity stops. Once the retention period expires, records are archived or deleted according to our internal schedule. You can ask us to explain which records are held and why by contacting support with your account reference.