Subscription contract for Golden Gym club for sale

I have a subscription contract at Golden Gym club Abha branch, I subscribed a week ago and now I have an emergency and I must travel for a long period outside the southern region Three-month subscription starting from 24th (Gregorian date) I paid 968, and I'm selling it for 700 which is worth it since they refused to refund the amount, they said find someone to buy it from you