Moving our lines

I've been phoning Telkom since last year, in the beginning of November to inform them that our offices are moving the end of the month, they gave me a ref number. When I called them about a week before we were supposed to move the never put our order through so that meant that they needed to do everything again. We're still waiting for them to move our lines, we're still paying every month for nothing. The business is also suffering because we now don't have a landline or internet. Every time I call them they have an excuse like nothing shoes on the system or whatever. I don't know what to do anymore because calling them doesn't help me at all !!!!! I think they can't do their jobs and are too lazy!!!