MTN horrible experience

Neither I nor my mother have ever had a mtn SIM card let alone a contract . 2 months ago my mother got a debit order from mtn for a crazy amount....she then went into the mtn store in the inkwazi mall ,Richards Bay and they told her there was a ********** account opened up in her name.

My mother then went and got a affidavit from the police statement stating that she has never had a mtn contract and that this is obviously *****. The lady that assisted my mother did not give us a reference number to follow up on the issue nor did she get back to us.....a month later another debit order came which we had to reverse and I went back in and they told me they are busy with it we must be patient....now today they attempted to debit R27260 from her account and she is and has been unemployed since November last year ...she has no income and the little money I am able to send her is now being taken by the bank because this debit order keeps bouncing...this is honestly unacceptable and I'm good and ready to take this to court if this isn't sorted out soon.