PATHETIC SERVICES FROM MTN

Good day <br> <br> my initial contract amount is for R329.00 odd and last month I was debited R539.00 I called MTN and they <br> advised I was out of bundle , but how???/ I do add additional data once my initial data is finished, but why should they deduct for it?<br> <br> then I alsways get this depleting data a day after I get my data from MTN and it takes all my data and this happened again to day so I called Mtn and spoke to Tawfuq who does not know anything cannot answer any of my questions, says there is no management around to assist me either, my data gets depleted every month after I get it , this is terribl, and the staff knows nothing cannot answer me, I asked when I got my contract to put a 0 limit on everything, <br> <br> I need answers I cannot be paying R5339 odd again this month when my contact is R329.00 unacceptable and the data needs to be sorted, <br> <br> I need to know how I can go about to change my contact to another sevice provider or get rid of MTN as a whole , they are terrible, my gosh