Bad service

I have a business internet line, and run servers from my premises. For the last couple of weeks I've been having intermittent and slow service. Every time I call MWEB, they say it is a Telkom problem. Telkom was here twice, each time within 8 hours of lodging a complaint. I sat by the Telkom technician while he tested the line, there is no problem on the line. I then phoned MWEB again, and again the support staff told me the line was down, but it was not. The problem is with the modem. After convincing the support guy that it was the router, he said that they would replace the router within 4 hours. Well it is now 20 hours, and still no MWEB. <br> The MWEB modem regularly gives problems and then they replace it with a refurbished unit. This is not acceptable any more.<br> I got better service from Telkom, that says a lot about the MWEB service....