Can somebody give me some advice please I received a call today from a company called Mckenzie hall,they asked me had i ever lived at an adress they gave me i told them no,but they insisted that i had and i owed them £3700 from a debt with HSBC in july 2001,i have told them that they have the wrong person and they said i need to go to the police and report fraud is this correct or are they fishing ?They said that they didn,t believe me and were going to serve papers on me.