Unauthorised Membership Subscription

Some time in 2013 September, I opened an Edgars account, used it and settled the debt/paid in full some time during the year, 2014. I then never used the account and the balance on that account remained at 0.00. On the 02/05/15 I then made a purchase using the account & on the 07/05/015 I was automatically added to the Edgars Club/VIP Membership without my consent and I've been charged since the 07/05 to date (3 months running). I then went to the nearest shop to cancel this membership but may I kindly request that I be refunded the amounts charged on my account without my consent? I request a refund because I did not authorise that I be added on the Edgars Club. It is interesting to note that since the account was on balance 0.00, this Club subscription was not being charged on my account & since the 2nd of May till to date I have not received any calls in relation to the Club nor have I activated it online since my online profile was only active on the 9th of July. May I please be refunded. Thank you.