Telkom is an absolutely terrible company

I have had this problem for over a month. No ADSL, then 1 Mb, then 0.1, then 1 etc. This has been going on for so long. My business has suffered. My clients need WiFi. I have explained this several times on this site and others. They have been here to fix the line. They have reset the port several times. They have identified faults in other places, like the exchange. But still nothing. Telkom, can I have a refund? I have a feeling they are not replying to my complaints because I am complaining. You are a disgrace. You are not honourable at all. Lets see if you have the decency to at least answer one of your clients. Is there any way around Telkom for internet, at all?