Please follow the below steps:-

1. Login to BOS with your user credentials.
2. Tap menu (located on the top right side)
3. Tap settings.
4. Tap store.
5. Scroll to see the Gateway option. Select the Gateway option.
   
   
6. To delete the gateway, click on the action button and select the Delete option.
   
   
7. It will prompt a confirmation message to delete the payment gateway.
   
   
8. Select the Yes option.
9. The payment gateway will be deleted and successful delete message will appear.