MTN **** **** ****!!!!!

MTN at it again...2years ago i upgraded my contract which was a diasater..I was billed incorrect and not recieving my data and call time. This took me about 3 months to correct and now im at it again. So a month ago i phoned to cancel my contract with MTN as the contract was coming to a end. A call centre agent convinced me to stay on the network with a package again and it sounded good so i went for it....after a couple of days i phoned to follow up what is my package i signed up for just to find out ill be paying more and recieving less than what i agreed on. So i phoned a numerous of times waiting on the line for hours to get this corrected and all that is said is i must wait 3 days. Then i phoned again and they said they will load credit to my account so that i dont get billed wrong and this was two weeks ago...so here im again phoning to follow up has it been loaded after they said 48h it will be loaded what a joke and what a bunch of *****. Its never been loaded.