Consumer Refund Service

Howdy!
I've just received a letter from them . "Dear occupier"
Free ppl check. From Stephanie Mitchell Claim Start Manager.
There is a list of16 Banks / credit cards etc .
I can list my previous addresses as well . TBH , it looks like a phishing expedition which I'll probably pass .
It lists Mbna , whom gave me plevin but not ppi. Fair enough.
Over the years I have had loans with some of the companies listed ,but when I consolidated ( never good) I paid back loans earlier and in the case of Barclays and Alliance &Leics I got cheques refunding me some loan protection as I settled loans early .

It lists Barclays and overdraft etc .
TBH, I got a good settlement figure last year when I was on a dmp,so I don't think I should be trying to claim ppi . Also, I can't prove I was missold . I'm just wondering who these people are, and how they got my present address . I've been in my new abode just over a year.
I can't see the company on my mobile phone history .
It may be the company I used when I tried to get ppi from Mbna .
Just wondering if anyone else has received similar correspondence from them?