Poor Poor Service from Vumatel

It is such a mission to get proper service from Vumatel. Telkom lifted a datacap but Vumatel is still applying the data cap. After numerous calls it is still not sorted. I've got an internet connection although just extremely slow due to the soft capt, but Vumatel can't pick an active line. How the hell is that possible. No Line, No Internet, right???? Working Internet(although not even 1MB), No Line??? How is this possible???