Cancellation woes

I took out a gym contract last year. ( I have been a member for many years before this). Due to a change in personal circumstances, I am emigrating and thus requested a cancellation. I was told I would have to pay 40% of the remainder of my contract. I found this unaffordable and requested a lower rate. I was given 30% as a last option. Upon which I could not afford and asked for a more reasonable fee or if I could perhaps pay off the negotiated cancellation fee. This was refused and I had to resort to freezing my membership and still having to pay 50% of my monthly membership. Surely Virgin being a multi national company can do more to assist. I find the cancellation policy ridiculous as they are not open to negotiation.