NOT RECEIVEING WHAT IM PAYING FOR

My ADSL line has been off since the 5th of May, multiple phone calls and online complaints and nobody can help me. I either get put through to another person which doesn’t answer the line or I get told they will get back to me which they never do! Also I have a uncapped home package but last moth I got throttled by the 18th of the month and this month by the 4th of the month. According to Telkom their FUP says you can only use 120GB per month(which is not stated in the contract, the FUP only states that they can slow your line if you are using extreme amounts of internet like peer to peer) that is not uncapped!There are cheaper capped packages with more GB available. We are two people using the WiFi service how is it possible that we have possibly used all 120GB in 4 days on a 4mbps line , when In pervious months we didn’t get throttle whatsoever. Our line was being slowed down to 0.35mbps which is ridiculous you can’t even open your web browser. Now our line has been cut off completely and nobody has rep**** or gotten back to us. Paying for a service I am not receiving