False advertising

My husband and I First app**** for a Telkom line with ADSL, however, Telkom informed us that the do not install lines in our area because of theft, However, our neighbor got his phone installed just 2 weeks prior to our application! After getting no assistance after this fact, we decided to go with the mobile Wifi option as advertised for R 249 per month. However, that amount just about doubled the first month, and nearly tripled since then. We did not exceed the data usage or anything so the amount should be R 249 pm. We have since stopped the debit order because we get no help from Telkom, over the phone or at their offices (we have been to various branches, and kept being told to phone!) And after once holding on for more than 2 hours, had to put the phone down. We have not been able to use the mobile Wifi for almost 3 months now, so why should we pay? This is the worst customer service I've ever come across! No assistance, no help, uninterested people working at the Telkom offices.