Old Mutual services

I’ve being with Old Mutual for years now. This month I had a problem with my debit order not going through. I contacted them and they sent me an email with options to fix the problem. I chose the option for the debit to go off again as soon as possible. A week later I get another mail giving me more options to resolve the problem. I can either register on their app or send them a whatsapp. I tried the app first but got nowhere. Then I sent them a whatsapp and was asked to enter my id number which I did. I then got a sorry we don’t recognise your id number. I had similar problems with a disinvestment a couple of weeks ago. Their service is very bad and communication is limited if you get a reply at all. Very disappointed I feel like cancelling everything.