continuous bad service

So yesterday I got a call from Adel in the private wealth department, she asked that I resend my payslips because apparently an incorrect credit card was opened on my name, charges on this account are too steep and I do not qualify for this type of account. How does this happen after I spoke to so many people who assured me that all was well? I just called fnb online banking spoke to Megan, she tells me that the old cheque account that was supposed to be closed in 2014 is still active therefor she cannt assist in updating my contact number on the system, meaning that the OTP will continue to be sent to this 071 number. She said on her side she picks up 3 accounts • 1 old cheque account that’s supposed to be cancelled. • 2 Credit card which should remain active • 3 the 32 days’ account that I opened today She transferred me to another department which is supposed to help cancel the cheque account, I spoke to Kopano who is telling me that with my ID number she is only able to pick up my profile, no active accounts. I send an email earlier to the credit card complains box no one is replying, I guess hello peter is the place where one can be assisted