No one knows whats wrong with my line

My internet line is extremely slow and most of the time does not work. I have been told that I have been throttled, just to hear that that is not the problem, then being told it is an accounts department problem, then getting sent back to tech support because according to accounts it is a technical problem. Does anyone at Telkom know what the hell is going on? This is frustrating beyond measure and in the mean time I'm sitting with a useless account that I'm paying for. I don't want a generic reply here, I want someone to call me and sort this out TODAY!!