POOR SERVICE CELL C - LEGAL DEPARTMENT

I CANCELLED MY CELL C CONTRACT WHICH EXPIRED 15.12.2018. I ASKED CELL C WHEN WILL I MAKE MY LAST PAYMENT THEN, AS YOU USUALLY PAY IN ARREARS, MEANING, 1ST USE AND THEN PAY. I WAS ADVISED END OF DECEMBER. BEFORE THE 20TH OF DECEMBER CELL C SENT ME AN SMS TO ADVISE THEY CAN TAKE DEBIT ORDER ON 20.12.2018 IF I APPROVE, REPLY YES, WHICH I DID. ON 20.12.2018 - DEBIT ORDER WAS TAKEN - R1111.64. THEN ON 31.01.2019 ANOTHER AMOUNT WAS DEBITED R871.33 WHICH I THEN CALLED CELL C FROM MY CELLPHONE TO FIND OUT WHY - THE CONSULTANT COULD NOT FIND MY CONTRACT ON ID OR CELL NUMBER AND ADVISED I HAD TO SPEAK TO LEGAL. LEGAL NEVER ANSWERS THEIR PHONES. ON 21.02.2019 ANOTHER 2 AMOUNTS WAS DEBITED R500.00 AND R371.33. WHICH I ALSO REVERSED AS NO ONE FROM CELL C HAD MADE CONTACT WITH ME SINCE MY 1ST QUERY. ANOTHER DEBIT ORDER WAS TAKEN 28.02.2019 WHICH I ALSO REVERSED, AS NO ONE REP**** TO MY COMPLAINT OR REQUEST ONLINE AS TO WHY ANY AMOUNTS MUST BE PAID BY MYSELF...IF MY CONTACT ENDED 15.12.2018 CAN SOMEONE FROM CELL C LEGAL PLEASE ADVISE WHYYYYYYYY????????????????????????????????????????????????????????????????????????/