No response, again

I have been trying to upgrade my adsl line. Went through the channels with my ISP and we were waiting for Telkom to check/fix/update (I don't even know) something on their side, called a few times and was waiting for a call back or response, my reference number is from 21/12/15, it's been over since I called you to find out what's happened with no response. This is not the first or second or even third time I have had problems with Telkom and their service. Such a disgusting company and yet we have no other option...