Virgin Active Account not in my name!

I have been getting continuous calls from this persistent Call Centre to an Virgin Active account i never ever had in my life. Please stop harrasing me with calls every single day to an account that does not exist against my name. I even contacted your contact centre myself and the consultant confirmed with me that my number is saved to this ladies name and even asked me if i know a person by that name of which i dont. So,Please STOP!!!!! with sms regarding a 50% discount on the account and being in arrears...PLEASE !!! PLEASE !!! PLEASE!!! Remove my contact number from your database.