Stubborn IFA Membership

2nd of Sep 2015 I submitted a cancellation request to IFA, via there email, NO REPLY. On the 17th I queried about this and only then was i told to submit a cancellation letter. Month end comes and i get debited again. Prior to this whole thing a consultant told me that my cancellation will be processed but nothing ever happened, this was towards the end of August so since then i expected the debits to stop. I feel i am being ****** of my money through delays in the cancellation.