cancellation of PERKS

I requested to cancel PERKS as it not beneficial for me at all. The lady advised sure we can cancel you will loose the benefits immediately but we will still debit you the end of March. For what? I mean I'm paying for something that does not work for me and you want to punish me by debiting again when i NEVER used any of your PERKS. i WANT THE DEBIT ORDER CANCELLED ASAP.