Not getting the promised MB Wifi as per contracgt

We have been with Telkom Since November 2017 We firstly wanted to apply for a 5MB contract with Telkom, but then a sales lady phoned us and offered us a 10MBS contract for almost the same price promising us that our area is definately covered for the 10MBS We have been struggeling with our connection ever since some days only getting between KBS and 1MBS wifi not even enough to connect to FB! After numerous phone call - getting reference numbers and numerous visits to the Telkom office - getting reference numbers and promising that a technician will attend - NOTHING HAPPENS This is breach of contract as we were promised 10MBS and the contract was signed accordingly We are considering taking action