Too busy for you

I have made numerous calls to Mweb to have my land line moved to VOIP. Mweb is as bad as Telkom when answering your calls. I have been told to book for this service on line but the username and password does not work. I had an email form an Mweb personnel asking what the best time to call which I responded to and that was the last I heard from them. It really is a frustrating place to deal with trying to give them additional business and you get the run-around. Do I really want to deal with people like this?