NO SERVICE FROM CALL CENTRE WITH REGARDS TO CANCELLING OF CONTRACT!!!

ON 4/12/2019 I PHONED CALL CENTRE TO CANCEL MY CONTRACT FOR TELEPHONE NUMBER *** REF NO 28771. I GOT THE CONTRACT IN DECEMBER 2017 FOR MY DAUGHTER. WE ONLY USED THAT HANDSET NOT THE SIMCARD. I WAS TOLD THAT THE CONTRACT ONLY EXPIRES IN JANUARY 2020. WE GOT THE PHONE ON 13/12/2017.WHY DOES THE CONTRACT ONLY EXP IN JANUARY. ON 4/1/2018 I CALLED VODACOM rEF NO I-C 3C909388 TO QUERY WHY MY DEBIT ORDER WAS NOT PUT THROUGH FR VODACOM. ON 4 DEC IS WAS TOLD THAT I WOULD BE CONTACTED BY AN AGENT WITHIN 4 TO 24 HOURS RE MY QUERY. IT IS 16 DAYS LATER. STILL WAITING FOR SOMEBODY TO CONTACT ME. I WENT IN TO VODACOM IN CLEARWATER YESTERDAY AND WAS TOLD THAT THEY DO NOT DEAL WITH ANY CANCELLATIONS IT HAS TO GO THROUGH CALL CENTRE. I ASK THE GENTLEMAN WHAT DO I DO IF I DON'T GET ANY HELP FROM THE CALL CENTRE AND A CAN'T HELP ME. HIS ANSWER WAS HE DON'T KNOW AS HE WAS NEVER ASKED THAT QUESTION BEFORE!!!!!! I AM REALLY DISSAPOINTED IN THE SERVICE I AM GETTING FROM VODACOM WITH REGARDS TO THIS QUERY!!!!