Internet down for 2 months

Since October, our internet in Lonehill EX5 has been off for most part of the two months. Telkom says they will fox the issue. The Internet works for 2-3 days, then goes off for 4-5 days again. This problem has been ongoing for 2 months. Telkom does not respond to my FaceBook messages. When I try calling the call center, I get cut off all the time (after waiting on the line for 15 minutes). Further more Telkom has not credit us for the 2 months its been down. My bill was R28 less these two months, but since our internet only worked for 20% of the time max, I'm not sure how they get to that figure seeing my line rental and ADSL comes to R498? They are getting away with ******, because there is not another Telecom provider in this country.