Telkom just want to be paid for not providing a service.

Telkom took more than 30 days to move and install my line at my new flat. But still, they billed me for internet access which I did not have. Now they have suspended my line, and still, there is no one to help me. Their accounts department never calls back, and it seems one has to drive to a Telkom store to log a call with their accounts department. Telkom is quick to send letters of demand when do not get their money, but conveniently no one records the fact that they also have not provided said service which they suppose to bill me.