Cannot get online

We've been experiencing REALLY slow internet access for a while. I mean slower than dial up. We phoned Mweb to complain about a month ago. They said we had used too much data (apparently over 100GB over a month period - which seemed impossible) and that Telkom were restricting our access as a result. We were told that everything would go back to normal on about the 17th Oct 2015. A month has gone by, it's the 24th Oct 2015 & we still have the same problem. We phoned Mweb again today & were told that we've used 150+ GB in the past 30 Days & that Telkom are \throttling"us again. That is definitely *******"