SIM CARD UPGRADED AND SIM SWOP DONE

MY SIM CARD WHICH I SIGNED FOR NEARLY 4(FOUR) YEARS AGO WAS A SMS BUNDLE FOR MY BUSINESS ALARM TO OPEN AND CLOSE AND THE ACCOUNT WAS ALWAYS AROUND R42-00....I RECEIVE A BILL THIS MONTH FOR R3702-00....I PHONED HEAD OFFICE TO EXPLAIN WHAT WAS GOING ON AND THEY SAID IM DOWNLOADING ALOT OF DATA. SO TUESDAY THE 12/05/2015 I WENT TO THE EASTGATE STORE WHERE I SPOKE TO A CONSULTANT TUMI....HE WAS VERY HELPFUL UNLIKE HEADOFFICE. MY SIM CARD WAS APPARENTLY UPGRADED AND A SIM SWOP DONE IN A STORE IN BALLITO ON THE 28/03/2015. I LIVE IN JHB(GERMISTON) AND HAVENT BEEN TO BALLITO THIS YEAR AT ALL. WHILE IM SITTINGWITH TUMI MY BILL WENT FROM R5100-00 TO R6511-00 IN LESS THEN AN HOUR BEFORE THEY STOPPED THE CARD. WE TALKING 10 DAYS THIS MONTH FOR THE NEW ACCOUNT OF WHICH ALTECH AUTOPAGE ALREADY TOOK A DEBIT ORDER FOR THE R3702.00. I THEN PHONE HEAD OFFICE TO CANCEL MY CONTRACT AS IM UNHAPPY AND I GET TOLD I GOTA PAY THE OUTSTANDING BALANCE OF THE CONTRACT PLUS THE USAGE UPTO DATE WHICH I DIDNT USE. IVE OPENED A ***** CASE AT THE POLICE STATION AGAINST THE BALLITO STORE AFTER TRYING TO GET HOLD OF THE MANAGERS. AFTER 7 DAYS I GET A CALL BACK AND GET TOLD LET THE POLICE SUMMONS ME. WTH