1. Open the Pay Bar application on your mobile phone and click My Options below;

2. After clicking, enter your account number to log in on the login interface. You can also log in if you do not have an account. Register and log in;

3. After logging in, click on the credit card below and select the card settings option under the card;

4. Enter the card settings interface and click on the transaction settings option to enter;

5. In the transaction setting interface, click the switch behind the one-key switch to turn it off.