Pathetic communication and poor service

I have been complaining for a while now about the poor WIFI signal. Nobody has contacted me and problem is still unresolved. I was sent an e-mail saying that a credit would be passed on my account for the service which was not available. I received my account and there was no credit passed. how much longer are they going to get away with cheating people. I have spoken to people in my suburb and everyone is willing to cancel their contracts with TELKOM as they are all experiencing the same problem