Frustration dealing with Multichoice

It is very frustrating dealing with DSTV Multichoice. We are definitely not getting the value for the cost we are paying. I am being overcharged with no context. First call to query resulted in the agent saying it was an error and it has been credited/refunded. A week later I didn't receive the credit. Called again. Another agent is giving a different story. Asked to speak to the Manager. I was put on hold for another 10 minutes after which Manager says he will call back. This is a joke.