Worst service even for an African Country

No service on Telkom VPN Lite for six months for three sites. Call center number is down or they can't log a call as the system is down. When they do log a call, they say its the Telkom line. The line works with normal ADSL, so Telkom refers back to VPN. Then they ask me if I tested the routers. That has been tested on 3 other sites as working. Then I get that there is nothing wrong, but the sites stay down. I don't know where to turn to anymore. If I ask to speak to a manager, they say he won't be able to help, or they disconnect my call. I've tried 10210, 10217, ***, but no one is willing or capable to assist. Asked if I can go to discuss the situation eye-to-eye, and they \will get back to me". I've heard \""will get back to you\"" a thousand times and only received a call back about twice. Meanwhile I'm loosing revenue"