GYM Company Cancallation Fee Unfairness

I recently joined GYM Company in 01 July 2018 and October got a job in Mpumalanga Secunda thereby having to move. I explained and wrote to GYM Company that I would have liked to continue with the contract but due to these circumstances of moving and Secunda having no GYM Company branch/gym there would have to cancel my membership.

I was then told I had to pay R1800 cancellation fee which I think is not fair as it is not my fault they don't have a branch in my new location and therefore should take that into consideration and cancel my membership without this R1800 cancellation fee as unfortunately this is beyond my control.