MTN keeps on debiting incorrect amounts even after calling to put a limit

<p>DEAR MTN im making this as simple as possible - i have called you 3 months in a row, ive made complaints upon complaints :)... your organisation keeps billing me over and above my monthly subs...... i keep getting told "MR MAHOMED you are exceeding your monthly limit and going into data expenses.... so on the first month i dont fight... i say to the lady, please put a R50-00 limit... she says ok np.... then next month i get through to another indian dude, rude as hell... i escalate him to his supervisor, he tells me MR MAHOMED i will look into it and call you.... so he does, and says that he has put a R1-00 limit or something on my account..... and you still F@#$% debit me R490 something.... now i try calling your customer care line 083 173 and the stupid computer keeps telling me to call back when i have a valid MTN number.... i am sick and tired of MTN *****ing my money. and and i think MTN has a bad enough reputation of *****ing peoples data and airtime... when you call MTN your agents blame the internet some say its a system issue that they can do nix about.....but anyway, why havent you guys set a limit, why are you guys still debiting me.... i want answers. </p>