VTR Friend finder
I have been billed for nothing

I was a member of friend finder over a year ago however i have not used this website in the next six months. When i signed up it was only a years membership however my bank statement shows that they have taken another £115.15 out of my account. I did not know of this and do not want this. Shouldnt they notify me before renew my account and making me pay for it? How can i stop membership and get my money back?

Thank