Being bribed by body lab member

Hello Peter please help me out member of the body lab gym gave me wrong information there were full of lies they said I'll gym for free first month then pay monthly fee if I like their service and they said they'll offer me free t-shirt I end up signing papers that i don't even know coz they were in a rush I ask them many times that this things won't deduct my money they said no all of the suddenly I got their messages saying I must pay R200 for bodylab gym while I didn't gym anymore I google their numbers and phone them they said I must cancel then I do so now there is a lady who used to phone me saying I'm owing R1000 some change for cancellation I told her that I don't have money now she said I must pay for it in 2 weeks time I work as a cleaner I only earn R2500/ month at Mabotwane security I have financial issues I have family to feed with that R2500 I stressed about this thing please help many Thanks?