No service for two months

We logged a faulty phone- and ADSL line with Telkom in February 2016. After numerous calls, live chats and e-mails, the line is still faulty. The history on their website showed all the faults logged, marked as 'resolved'. The phone worked actually for 2 days, before we were back to square 1. The problem is not with the call center: they were cordial and very understanding and marked the faults as 'urgent' and promised speedy results. The problem is the technicians: promises were made that team leaders or service managers would phone back, but nobody ever did. We have paid telkom now for 2 months, without any services. This is in Stelelnbosch. We asked if our problem was (is) an isolated or an area one, but did not receive any answer. And we are still hoping and waiting, because: what can be done?