Safricom Potchefstroom BAD SERVICE

for the past 4 weeks we have been experiencing problems with our wi fi in fochville. we called them multiple times, and no one can tell what the problem is. they even told me to make up for bad service, they'll put me on a 10mb/s line for no extra costs. Now after they have done that, the internet is even worst than ever. It's always offline, and if its online, it's so slow, you cant use it. I called the call centre again today, and I asked them if there is any person who can help me. The rep**** that they don't have any contact numbers for management. I managed to get hold of the "Health and safety" manager of safricom. He accused me now for miss use of my "Uncapped wi fi". He is so rude the the client's. I tried to explain to him that is why I took the uncapped package, but I couldn't even get a chance, as I said he was so rude and he didn't even listen to what I was trying to explain.