R39 CONTRACT COSTING OVER R400

I took out a R39 data contract with Mweb during November 2013, and was assured over and over again that that was all I would pay per month. I insisted that I could not afford more than this amount and was continually assured that was all I would pay. Right from the start there was a problem as I was charged 3 x R39 in the first two months together with an once off payment of over R250.00. Not getting any results from calls to Mweb I eventually had the problem resolved after putting it on Hello Peter. In the last three months, My R39 per month contract has cost me R1400.00. Mweb simply refuses to accept the fact that this data contract was for R39 per month and that when the data was up that it should have been cut off. They simply let it run as long as possible. My daughter in law had been using this and for the last eighteen months there was no trouble whatsoever, then all of a sudden these huge amounts. Mweb simply refused to accept that this is their fault., as they did not cut it off at the R39 mark. After realising that they would not help, I sent numerous emails to them requesting that I be allowed to pay this huge amount off with absolutely no response from them.