Fibre "more" consistent and reliable than adsl

Hi I have been moved over to fibre recently, (besides the fact that it took 7 different technicians a few weeks to get it connected and then not being given what was agreed upon - data allocation for the free trial period) it has been slow and the connection has been inconsistent compared to the ADSL line that I had with you guys - that was a 4mb uncapped line. I would like to cancel my Fibre and everything I have with Telkom please. I have wasted 5 days of my leave with the technicians trying to get it connected and another 3 days standing in the queues at the Telkom shop, as the call centre cant assist with anything as they redirect me for a hour or 2, with no resolution.