SABC Collections are harassingly aggressive!!!

Apparently I was handed over to debt collectors even though I have had no notifications, invoices or statements. Their debt collectors, Hahn Collections Pty Ltd, keep sending me seriously harassing messages non-stop. Seriously aggressive and abusive. The SABC needs to make customer service a priority, no communication whatsoever and now I am basically being hounded by their collections company. Unacceptable.