Telkom ADSL BAD SERVICE

I've been logging faults for months without any rectification. I requested for Telkom Legal Department and they told me they don't have a legal department. I got an ADSL line with 10mbps uncapped and not getting a 1mbps consitently. It goes on an off and have to reset the router every 5 to 10 minutes. The last fault I logged 78CRK250318 was not even looked at and got a message it has been restored. I asked my son to do a speed test and got 1mbps. I am paying R799 for a service that is not working as described when it was sold to me. I am never late with monthly payments and always pays more than what is billed. What can i do in this case as I took out an LTE capped contract double the price so that my son can complete his daily study as a web designer.