Telkoms Pathetic Internet Service

I have a home internet fibre contract with telkom. For the past month my internet keeps going offline, then online and then offline again every few mins. This happens on a daily basis, I don't full internet access for more than 15mins. It's so frustrating cause I'm paying for a service but not getting any satisfaction from telkom. I logged a fault with them for the 5th or 6th time but they cannot resolve the issue I'm having with my internet. They keep saying Please note, we have rested your service ports, please test your connection fibre and revet back to use any changes. When I do revert back and advise them nothing has been sorted out and I'm having the same issue. They don't get back to me. And I've paid for a full month for the fibre, which I want a refund or better still just cancel my f#*king fibre contract with them and they must not charge me any early cancellation fees now.