Phone Line cannot receive calls for over 6 months

Our telkom business line Has not been receiving calls for the last 6 months. Numerous call have been logged, but miraculously just shows as completed on system without technicians even coming out to site. I finally got tired of dealing with telkom on my own and got the company who handles our switchboard systems to contact them. Site meetings were made and confirmed on 2 occasions already, but to no surprise no one came out to site. The last meeting was scheduled on for the 12/01/2016, and thus far no explanation has been given as to why no one pitched up for the site meeting. I have only had positive experiences with telkom in every region that i have dealt with them. Unfortunately, it seems that telkom in only this specific area (Waltloo, Pretoria East) is pathetic. I do not know who to turn to anymore. Ur assistance in this matter will be greatly appreciated.