Bad Internet Speeds since May 15 and no resolution

I have been having a problem with slow internet speeds since May 2015 and each time i call in to report it the calls don't get resolved. When doing follow up the calls get escalated but still the problems don't get resolved. Each month i am told the calls can no longer be escalated and a new call needs to be logged. I have now been paying for services for months that in unusable. I am so irritated that i have no idea what to do any longer. And unfortunately they are the only ADSL service providers in SA and take advantage of the fact that there is no competition to move over to...<br> 1st ***, then escalated: 690897, then escalated again: 693540<br> 2nd ***, then escalated: 713781. then escalated again 716489<br> 3rd ***, then escalated: 719551