bad very bad service

I took a fibre contract with vodacom for over 3 years but seems to have been the biggest mistake. recently the fibre is been fixed almost every 3 months and its now a year I am really annoyed by their service if something has to be fixed very 3 months clearly there is a problem. they keep sending me temporary solutions in the interim of waiting 4 to 5 days to get a technician i have to buy back up data and still pay them full monthly payments for a service i am not receiving. they are the worst