DO NOT TAKE A CONTRACT WITH MTN ITS A ****

Been with MTN for more than 6months and my contract never had issues and the lady at the Jabulani Mall store gave us assurity that the contract is a TOP UP LINE this month after paying R869 for all these months MTN debited R3287.35 funny because the main line does not have issues the line i don't use had to be the 1 with issues. I want my money back. And clarity of who made changes without my authorisation. When and how I've never been so angry with the poor service MTN doesn't care about it's customers anymore.