No service from FNB call centre

I have tried to get a hold of FNB to assist with my cards that have been stopped due to a additional account that I have opened. Now my current card is not working, the app is showing a active card which I do not have and my business Petro cards are also not working.

The call centre is useless as I have waited extensively for a agent to assist with this. But every time I have phoned the call centre the call is eventually dropped after a certain time. They also do not call back and not even the private client call centre has been of any assistance.

The service I have received is disappointing to say the least. Maybe I should rather just change banks.