Banking APP crisis

I have been having trouble for so long trying to get into the damn Money app from Nedbank. It has been almost 2yrs because I have changed phones twice already. I ended up phoning Nedbank last year after I got my last phone and it is to date still not sorted out. I have to "create " a New Nedbank ID but when I try it says my user already exist when I try to retrieve it it says they can't find me. I have had it with this nonsense now. This has been going on way too long. I hate this, and this is the service I receive from Nedbank - THIS IS SHOCKING!!!! NO ONE IS HELPING!!!