MNT just doesn't care about their customers being de*****ed

Since November last year when I was hacked and someone charged 7500 worth of phone calls to my contract of R290 a month,paid by debit order, I have been Trying to get the MTN ***** Department to acknowledge my letters and do something about it. They totally ignore me. I am now paying by cash every month on the due date and have to go to the bank and reverse the charges which MTN are still taking off. This costs me R30 bank charges every time. Is there a worse Customer Care attitude in the whole country? I don't think so. This is in stark contrast to Old Mutual Insure which responded within the day to my complaint on Hello Peter and resolved it quickly.