Telkom ADSL not working

My ADSL line has been very slow and intermittent since November 2017. I have logged numerous faults with Telkom but each time they simply make one call to me, tell me they are 'resetting on their side' (whatever that means) and they then close the fault. But the problem remains on my side (the side that is paying for the service). They have indicated they will send out a technician but this has not materialised.

Telkom has always provided good service to me but this is very disappointing. I wonder whether it has anything to do with coercing customers to move to fibre.. Telkom if you can't sort this out properly this coming week, I'm taking my whole account away from you.