Dismal service, broken app

I have been trying for months to do th simplest of transactions: Set up a debit order to pay my credit card. It should theoretically be possible in the App, but it fails every time. Reported this months ago - still not fixed.

Trying to do it by telephone is an exercise in futility. After endless waits, explaining what's required, the call cuts off. A call back s never initiated.

The bank lists 2 other ways to contact them on their website. None work. I have tried several times.