NO MANDATE BUT AGENT OPERATES ON MY ACCOUNT

I CANCELLED MY CONTRACT AT CELL C IN APRIL. ONLY TO BE TOLD IT CAN ONLY EXPIRE 30 JUNE ALTHOUGH I HAD A MONTH TO MONTH CONTRACT. SATURDAY I WENT TO FIND OUT ABOUT AN UPGRADE. THE CONSULTANT TOLD ME I HAVE TO FIRST CANCEL MY CANCELLATION ON MONDAY. AS ITS MY SONS PHONE AND HE TRAVELS ABROAD AND CELL C DOES NOT HAVE THE ABROAD ROAMING FACILITY I DECIDED NOT TO CANCEL MY CANCELLATION. THE ALBERTON CONSULTANT THEN CANCELLED MY CANCELLATION - HOW DOES HE DO THIS HE HAS NO MANDATE OR SIGNATORY FROM ME. WHEN I PHONED THE TRADE PARTNER I WAS TOLD TO GIVE NOTICE FROM TODAY AGAIN. I WENT TO ALBERTON TO TRY AND SORT. THEY CELL C ARE OBVIOUSLY ****** AND HAVE MY PHONE CONTRACT FOR AN EXTRA MONTH NOW, QUES WHAT MY OTHER PHONE CONTRACT ALSO WITH CELL C IS UP FOR RENEWAL IN NOVEMBER THIS YEAR NOW I WILL NOT RENEW MY CONTRACT. ALTHOUGH I DON'T NEED A ROAMING FACILITY PLUS I PLAY GOLF GO TO THE GYM HAVE LOST OF FRIENDS FAMILY FACE BOOK AND LINKED IN CONTACTS AND CLIENTS