MWEB.FIBRE...still no WiFi? ? Still no tech support

I am at the very end of my tether. .the biggest mistake I have ever made was to change to Mweb Fibre. I have spent so many hours on the phone with 'tech support' and still have no wi fi in my home, we have changed channels, rebooted, changed routers to no avail. I have 2 question's. ..does MWEB intend to ever find the fault in my system & supply with what I pay enormously for. Secondly do I get a credit for all the months I have been paying without having access in my home to wifi