MTN provides beyond pathetic customer experience ,its really bad!

In July I’ve upgraded 2 sim only contract of which the new instalment should be R548,on the 20th August MTN debited R860,I’ve contacted the nearest store and i wasn’t satisfied with the outcome,and then i contacted MTN coverage on 083135,i was told that the extra fee of about R300+ was for pre data and that this month I’ll pay the normal fee,***,today MTN debited R885,when I phone again i was just told that my previous query was about an invoice and that the extra money debited was for upgrading fee,one charged last month and the other this month and that next month I’ll pay a normal fee.Today I was assisted by this impatient and unfriendly consultant who made my day even worse. I’m so disappointed and frustrated with MTN,it’s actually a nightmare,bad news! You resolve this immediately or i cancel those contracts and reverse those debit orders because you’re ************* and ***********. Now suddenly you seem to **** clients. ***