Hello, it's an honor to answer your question. If the rural credit cooperative forgets the bank card number, you can log in to the bank app of the rural credit cooperative through your mobile phone number and password. The method is as follows:

1, first enter the login number and password, and click Login to enter the app homepage of the rural credit cooperatives.

2. Then, after entering the app homepage of the rural credit cooperative bank, click the symbol at the top left to enter the settings.

3. Then find the security center inside and click enter.

4. Then click Enter Security Center, find the information switch in information management, and click Enter.

5. Finally, click to enter the information switch, and then click to open my account to display all accounts, and you can find the forgotten bank card number.