Cell C not releasing fibre line

I have been desperately trying to get Cell C to "release" the fibre line at my home. The former tenant, whom rented the line through Cell C has given written instruction for Cell C to release the line, however, after 65 days the ticket number CF089772 is still active and the line has still not been released. I urgently need this to be rectified as I cannot operate a business effectively without a fixed internet line. Please may this be attended to!