Absolutely bad in every way from customer care to actual internet

So many problems with this provider. Not counting the initial issues I had they have been giving me half my line speed that I pay for and when I made them aware of it they put me on a 2meg line and no matter how much I try and contact them to ask their help in fixing it they keep telling me to wait for an email response, the email response says to call the call centre, and IF the call centre answers they tell me to wait for an email response, and so it keeps going. It bothers me that I pay for a 20meg line and at best I get a 10meg speed, I also have a capped account and I have data left but cannot use the rest because of the poor internet. And as anyone can imagine one would like to use the data you pay for, at the speed you pay for, but for some reason Vodacom just doesn't care in any form or level, while I care a lot because I rely on internet for work so this has a direct influence in my life.