Top-up billed as open line

I have taken out a contract (internet) for a R139 per month and after a few months later I was billed over R600 and then the next month over R900.<br> <br> I enquired, only to be told that my subscribtion was for an open line when I specifically requested that I do not pay more than my subscribtion amount and then they also confirmed to me that I can buy more data should the need arise.<br> <br> I tried to contact MTN SP numerous times via long phone calls and email after which I was told that they would have to listen to the call recording of the contract. I followed up but nothing. Went to the bank and disputed the overgharge debits for it is not what I had signed up for. Furthermore, the software they supp**** with the device never worked when requesting balance - always only showing R0.00 every single time it was used.<br> <br> MTN Suspended my account until it was resolved, causing me to get a telkom line installed so that we may continue our correspondence studies.<br> <br> Today, I found that my account has been deemed defaulted and a collection service has been appointed even though I am still awaiting some form of resolution to my problem.<br> <br> <br> Ashley