No fibre connection - Faulty ONT - no help from voda****

Been struggling with no internet for a week and a half. My ONT box is faulty and I have no connection. Called the fibre 'help' line, but they are less than useless. All they can do is log it. They make promises that they will call me, but over a week later and I have not received a single call. Now they want to pass the buck to openserve and suggest I call them. Really? Who am I paying every month? I am paying voda**** not openserve. What will happen if I deduct the days I've had no internet from my bill at the end of the month? I guess then you would phone me immediately to pay up, won't you? Fix my fibre!