Pay as you LOSE account

So Nedbank, you sneak in and take my disability money..??? 12 years ago i had an Nedbank a Ackerman's Store card, cut a long story short the debt was written off.. fast forward years later to 2019 and I open a "payas you use" account, I'm told the debt is written off and it won't be a problem, so all of a sudden I get a R302 unauthorised debit order coming off my disability pension!! I call Nedbank 5 times only to be put through to the "Legal Department" nobody answers and their mailbox is full!! Now I have no problem settling a debt but this falls under the prescription law and is totally bs!! Why wasn't I called and asked about settling or negotiating a payment plan???? 12 years old!!!! Absolute disgrace, I'm going to the ombudsman and closing the Nedbank account.. I get a small disability pension and survive on that Sis on you!!