unsatisfied former zone fitness member

I am fed up with recieving phone calls from a Lawyer regarding my zone fitness account. I am no longer a member because i finished my contract with the gym a little more than a year ago. tried to sign up late last year but did not pay the deposit they were requesting so i am currently not a member.

i keep getting phone calls from Debt collectors asking me to settle my account. firstly they do not have my correct i.d number and then also my address is incorrect. what clowns do you have in charge of your accounts?

i need this resolved asap or else i will be taking further action against the gym for incompetence.