Worst expierience

There was a problem with my contract billing, and every month my debit order was more than it should be. I went to numerous MTN branches in Bloemfontein and every time they send me to a different branch. So after 3 branches I went to the head-office, where a guy helped me, and told me that everything was solved and I don't have to worry about it further. Few days past and I receive an SMS saying that I still have an outstanding payment and that they are suspending my contract. I went back to MTN head-office (Zastron street) to clarify, once again that my bills are paid for with a proof of payment. Trying to explain that they made a mistake and that I'm paying far more than my contract states,this person, Brian Nel(not sure about surname,because the workers seemed uncertain) , was so rude to me,and accused me. He didn't even help me,he gave me a reference number so that I can sort out the problem myself. I walked out there crying and traumatized,and went straight to the MTN in Mamosa mall,where they sorted out the problem in less than ten min.That guy shouldn't be helping customers because all he's doing is traumatizing people with his arrogant attitude! WORST EXPERIENCE EVER!!!