Everyone Active complaint: Service not provided and want refund of membership

I was a member at sunbury leisure centre and although my membership did not run out until October I was telephoned a couple of months before and told I should renew early to avoid increased charges when Places Leisure took over. This I did. However, as you can see from my membership, I only attended water aerobics as I cannot swim due to health conditions. Since taking over from yourselves the aqua aerobics sessions I attended have not occurred. This week I was persuaded to attend at the same time as normal when fitness equipment and music would be available for the group. There was no music or fitness equipment until I complained . As my yearly membership with Everyone Active is until October next year I am still within the 14 day cooling off period and wish to cancel and have refund of my annual membership fee, especially as you originally contacted me to persuade me to renew.