Unable to make contact and communicate.

I have a contract for data and airtime for more than two years. Telkom sends automatic emails and there is a button to request them to call me. They never do. If I call Telkom I fail to get help. One can easily loose R100 so long it takes to try to call them. My contract has expired, and I want to discuss renewing it. I am a disabled person, and I went to their offices without help. Can they call me. ***.