No Assistance

I was contacted by a debt collector to collect a debt on behalf of Virgin Active, after some investigation I managed to discover that a contract had been opened up using my name, I was informed by the club admin person that the debt collector had been told to not contact and they were still investigating. Unsurprisingly afterward I received a letter stating that I need to pay the relevant amount within seven days. I contacted the debt collector who told me that I would have to contact the Virgin active legal department. After numerous calls I still cannot contact anyone that can assist me, I get given numbers that no one picks up, I am sent from pillar to post and still have no joy. I still cannot get hold of anyone that can assist.