Sorry, putting here for traffic 
Over the past 6 weeks or so we've had post (in about 6 different names) all from Aviva. At first thought it was a mistake but more kept arriving and in more names. We've lived here nearly 5 years and the couple who lived here before us moved in in 2003. We've never had post for anyone other than them since we've lived here.
Anyway, as my suspicions grew I opened the post and they are all "you canceled your direct debit" letters. Fine, I ignored. Today a new one came from tesco in a different name. It says "we understand you had an accident with X, please contact us". Is this some sort of scam? Will it be messing up our credit? I'm going to contact both Aviva and tesco. I am absolutely certain these people have never lived in this house. Is this something anyone has heard of/happened to them?