Table of Contents
When you register on the b650mk platform, we collect certain personal information from you, including your full name, mobile number, email address, and date of birth. This information is used to create your account, verify your identity, and ensure a secure login process. For users in Bangladesh, mobile banking numbers (such as bKash, Nagad, and Rocket) and, where applicable, partial bank account details may also be collected for processing BDT transactions. Some technical information is collected automatically from your device and browser, including your IP address, device type, operating system, browser name and version, and connection duration. We also record usage data — such as which pages you visited, how long you stayed, and which buttons you clicked — to help us improve your experience on the platform. Session data, language preferences, and login status are stored via cookies and local storage.
Account information
Device & Connection Information
Payment information (BDT)
Usage Data
B650mk uses your data only for specific, legitimate, and transparent purposes — never unnecessarily. Your registration details are used to create and manage your account, verify login security, and process password recovery. Payment information is used to handle BDT deposits and withdrawals, confirm bonus and offer eligibility, and maintain transaction records. Usage data helps us analyze and improve platform performance, personalize the content you see, and identify technical issues. Data is also analyzed to monitor unusual activity and prevent fraud under our responsible gaming policy. Where you have given consent, we may send email or SMS notifications about new offers or service updates — and you can withdraw that consent at any time.
Important note
B650mk never sells or rents your personal data to third parties for commercial purposes. All use of your data is strictly governed by this Privacy Policy.
B650mk retains your data only for as long as necessary to deliver our services and meet legal obligations. Data for active accounts is kept for the duration of the account, and permanently deleted after a set period following account closure. Financial transaction records are required by law to be retained for a prescribed period under Bangladesh's applicable financial regulations. To protect your data, we use industry-standard SSL/TLS encryption, which prevents unauthorized third-party access during data transmission. Data stored on our servers is also kept in encrypted form, and only authorized staff may access it — strictly on a need-to-know basis. In the event of a security breach, we will notify affected users as quickly as possible and take preventive action.
Technical security
Organizational security
B650mk never sells or rents your personal information, and will not share it with advertisers or unrelated third parties without your consent. That said, operating our services may require working with certain trusted providers — such as payment processors — on a limited basis, and all such parties are bound by strict confidentiality agreements. We may also be legally required to disclose information in response to valid requests from Bangladeshi legal authorities or regulatory bodies; in such cases, we will make every effort to notify you. Information may likewise be shared under applicable law in connection with fraud investigations or anti-money laundering efforts. Any third party that receives your data must adhere to b650mk's privacy standards and may only use that data for the specific purpose for which it was shared. Any international data transfers are carried out only after ensuring full compliance with applicable laws and security requirements.
B650mk believes you should have full control over your personal data. To that end, we provide the following rights, which you may exercise at any time.
Right of access
You can find out at any time what information we hold about you. A copy of your data can be requested through your account settings or via our support team.
Right to rectification
If your information is incorrect or incomplete, you can request a correction. We will verify the details and update them as quickly as possible.
Right to erasure
If you close your account, you may request that your personal data be deleted. However, certain financial records may need to be retained for a legally prescribed period.
Right to object to processing
You may object to your data being used for marketing or optional analytics purposes, and you can withdraw any related consent at any time.
Right to Data Portability
You can request an export of your data in a standard format (such as CSV) so it can be used elsewhere if needed.
Right to Withdraw Consent
If you have consented to email or SMS notifications, you can withdraw that consent at any time through your account settings or by contacting support.
To exercise any of these rights, please contact our support team. We aim to respond within 30 business days of receiving your request, and we will notify you if additional time is needed for more complex cases.
B650mk may review and update this Privacy Policy from time to time. Changes may be made in response to regulatory updates, the introduction of new technologies, or an expansion of our services. For any significant changes, we will clearly display a "Last Updated" date at the top of this page and notify registered users via email or platform notification. Continued use of the platform after any changes will be taken as your acceptance of the revised policy, so we recommend checking this page regularly. If you object to any changes, please contact us or submit a request to close your account.
Support & contact
For any privacy-related questions, requests, or complaints, please get in touch with us:
Email: support@b650mk.com
We typically respond within 24–72 hours. More complex matters may take a little longer.
Last updated: 2026. This policy applies to all services on the b650mk platform.
Your privacy is guaranteed at b650mk, where we deliver Bangladesh's best betting and lottery experience. Register today and start playing in a safe, secure environment.