Don't get telkom fibre

I have been with telkom for many many years but for the past year their services has really gone down. I had a problem with connectivity for over a year but they can not sort the problem. I tried to cancel my contract but they said that I would be heavily penilised. So they suggested I increase my speed and my monthly payment. So I did that. Problems still persists. Numerous fault reporting but proplem still exists. I am at my wits end.