Xbox Live Refund

AGAIN, MY XBOX LIVE WAS SUPPOSED TO CANCEL ON DEC 18 WHEN I STOPPED THE PAYMENT (AFTER THE PROMO). I CHECKED ON THE 19th TO ADD ANOTHER SUBS & IT CONTINUED, CHARGED $12 FOR 1 MONTH. I CAN GET $12 FOR 3 MONTHS, WHY WOULD I EVEN LET IT RENEW ? THIS NEEDS TO
CANCEL, SO I CAN JUST ADD MY SUBS. I AM NOT PAYING THIS, AND DEMAND A REFUND/CANCEL ! THIS NEEDS TO GO TO A SUPERVISOR OR SOMEONE OF HIGHER POWER.

:)