Cancellation nightmare

Struggling to get my issue resolved. Cancelled my membership in october. Last month of membership went off in november. Now another debit order has gone off my account for december. I have phoned and left messages countless times. I have emailed info@moimooi and Harrison Venter as well to day mo response or refund. I need my devit order to be cancelled and a refund issued for monies taken after membership was cancelled.