important

i was signed up for a 3 year contract without being informed i was **** to and told the contract will commence the day i decide to go to the gym ive never been to the gym but they keeping debiting on my account i called multiple of times asking for them to cancel the contract because im not interested im being threatened and told im going to be blacklisted if i do not pay bare in mind im 18 years still in school and financially im not stable im required to recruit people to sign up for gym company in order for my contract to be cancelled which is not my job i need help i cant deal anymore