FIBRE ISP SPEED BEING THROTTLED WHILST SERVICE IS UNCAPPED

I am a client of Telkom and for the past 3 weeks, the speed of my fibre service has been throttled to 0.20 mbps. Whereas I am on a 20mbps uncapped service. I have spent not less that 8 hours, since 4 October 2017, on the phone with you technical team to resolve this matter with no joy. I am highly upset that I am being charged over R800 per month currently for a services that I am not receiving. I have subsequently cancelled my service and was told of the 21 day notice period. Thus I continue to be throttled whilst paying this exorbitant amount, which is not fair.