Slow response and no service

Telkom line damaged by lightning on 14/10/2017, reported on 15/10/2017 as we had no internet or landline, the line was partially repaired on the 31/10/2017 two weeks later. I re-reported the fault on the 2/11/2017 as still no landline and the internet connectivity is so slow you can barely use it, it also disconnects at random so effectively it is useless, have phoned many times but get nowhere only to say the fault is escalated, we have no notification when it will be attended to yet fault ref no's: 179CNK021117+12CNK151017. I am on a 24 month fixed contract @R599 per month surely I should have recourse to get out of the contract as there is just no service and this is over a month now, my landline is ********** 679