MTN ********** charges and disastrous Call centre

Careful not to take MTN contact online or over the phone.MTN **********ly puts unauthorised charges on your customer accounts. They will say u took the contract and refuse to give u the recording, they say it's lost. Even their ***** department is in on this. They say it's an error, when asked to correct, they send u back to the call center who insists that is your charge. They are adding R1870 on my account for 50gigs. I took 40gigs for R169p/m. Who in their right mind would take 50gigs for R1870, on top of 40gigs where u pay R169? I Logged over 7 queries each one says they will resolve it,should be an error, but closes the query without resolving it. The departments blame each other.Invoicing says it sales, and store says it the contract department. Etc. MTN *****stars and ****ers.