Extremely bad Service Delivery and still expecting to pay for no service provided

Me and my Fiance has had and are still having the worst experience with Telkom. We have been phoning since January 2017 for a technician to come out to our home to see if they can maybe get a signal in order for us to have internet again. It is now 10months later and numerous calls between us and them and STILL no technician has come out to do his work. Within this time we sent through two cancellation forms where it was confirmed that it was received (It was in cancellation 3 times) - at first we just reversed the debit order, phoned them and tried to sort it out, then they just send us a sms stating that they are still busy working on it every week until month end comes. Month end has come and gone and still no technician, no cancellation and no service delivery and now they want to hand us over or issue a summons, but they are the ones that are in breach of contract.

Every time we phone they come up with some bad excuse, we even went to a telkom branch but to no prevail.

I do not know what to do anymore, I am not going to pay for something for the rest of my life because they are to lazy to just do their work and to provide a service. There is no such thing as free money and according to my knowledge no service equals no payment, and Telkom Mobile has done nothing but try and take our money.