More awful Telkom service

Telkom never fails to provide the absolute worst service imaginable. My parents ADSL has been down a week now and there is no indication of when it will be looked at or even if it will be be looked at, at all. This after 3 calls to the their call centre daily and an almost daily interaction with the Telkom twitter account. At one point we found out that the job had been assigned, only to be told the next day that this wasn’t really the case. The worst part is that my Dads business which is heavily reliant on internet convection is suffering and we have no idea how to escalate this. All we have is this lousy reference number ********** . Is there anything we could possibly do to get Telkom to look at our problem?