Bad service

Apalling service. I spent more than R200 on phone calls to clear error codes on xtra view after i upgraded my service. Seems no one knows how to clear the codes and i was told to contact an installer to come and rectify at my own expense. Why do they offer a service if they cannot mantain service. I have now paid for a service that i have no benefit of. I mafe more than 10 calls and the error persists.