That's the problem with contracts with Gyms! Had the same trouble myself. However they should have a record of your induction on file so you could ask about it. As far as exercise goes, if they have a pool swimming is good. Also if you start on a treadmill, slowly at first then building speed and use the cross trainer if you can (I hate them!). Frequent repetitions with light weights on the resistance machines is good for toning and bikes should help with aerobic exercise. You should notice a difference in overall fitness then gradually you will lose weight