Access to banking app

Received an email this morning to the fact that from 01 February 2021, all statements will no longer be emailed to the client, but, will be available on the banking app. All very great if you can access the app. I have tried more times than I care to count to load this app, every time I enter my ID, I'm told that there is no record of and I need to open an a/c in order to use the banking app! I have had an FNB credit card for well over two years now. Maybe I should stop paying it if I am not a registered client. I'm more than sure that will get their attention. I have gone so far as to open an account with FNB in order to resolve this issue, and, too no avail at all! The service from the so called top or one of banks is horrifically atrocious. I wonder why I pay service fees, with this type of service, they should be paying us!!!!