NOT CANCELLING 6 YEAR OLD TV LICENCE ACCOUNT

IN 2009 I SENT THROUGH A REQUEST TO CANCEL MY TV LICENCE, SINCE I GOT MARRIED, AND MY HUSBAND HAS A VALID TV LICENCE, I EVEN PAID THE OUTSTANDING MONEY THAT WAS OWED ON THIS ACCOUNT IN ORDER TO BE ABLE TO CLOSE IT. AFTERWARDS, I SENT ALL THE NECEESARY DOCUMENTS THROUGH TO SABC FOR CANCELLATION, AND AFTER NOT HEARING ANYTHING FROM THEM FOR 4 YEARS, I ASSUMED IT WAS CANCELLED, THEN ALL OF A SUDDEN IN 2014 THEY SENT ME AN SMS STATING THAT I OWE THEM 2700, WHICH MEANS TO ME THAT THEY DID NOT CANCEL THE ACCOUNT. I SENT THROUGH THE DOCUMENTS TO THEM, AND EVEN LAID A COMPLAINT ON HELLO PETER, WHERE AFTER I WAS TOLD IT WAS \ESCALATED "THEN AFTER THAT I HEARD NOTHING"