Virgin Active Amends 1yr Contact to 2yrs

I took out a GYM membership 1 Feb 2015 for ONE year. It should expire 31 Jan 2016. During January I decided to enquire to ensure that no further d/o comes off at the end of January. Now I am told SORRY you signed for 2 years. The agent never gave me a copy of the contract it was done electronically at the gym. My two daughters were present and we made it quite clear its only for 12 months. We signed on that agreement and it has subsequently changed to 24 months. This is unacceptable and **********. I want this matter corrected ASAP and don't you dare debit my account. Please forward me a copy of that contract. This matter will be taken up with the OMBUDSMAN, should I not hear from you by 26/1/2016. HOW DARE YOU