Vodacom FTTH bad product and even worse service

So i recently had fibre to the home installed (from Vodacom) After numorous calls my problem is still not sorted out cant seem to find someone competent enough to fix the problem I got the fibre last week friday the problem started last week saterday an is still ongoing a week later and no one to assist in fixing the problem cant cancel the contract since its a week into a 36 month contract but cat use the service either so i just have to pay for something that is not working