very very slow service if any

I have been with vodcam since they started out, and still am, it is so so very upsetting when I need to brows or want to download anything and it take almost 22 min just to open anything on the internet, you can't download at all it juts keep time out or downlaod a 12 second thing for allmost 2 hours and still fail!! Mtn more useless you can't even speak to an operator at all!!!! Cell c same as Vodacom just no signal and no service, I even got 2 new phone same problem, can't do anthy accept call, hate this so much!!!!