hello i have one of these letters today from buchanan clark and wells with my name and my bf name on sent to my new address but my old address on it and they want me to say if it me or not really worried

hello i have the same letter as this today but with my name and my bf name and my previous address really worried I have received a Verification Letter from Buchanan Clark & Wells today- "We are trying to contact katypie with regards to a private matter We have confirmed your address through a credit link obtained via a credit reference agency as being the same person who lived at the original address above. Please contact us on 0844 BLAH quoting the above reference number and one of our operators will be available to take any relevant detals to resolve the matter. If you believe that you are not our customer, please contact us as soon as possible to enable us to amend our records and remove your address from our system file." Doesn't say what it is about. Would I be right in thinking this is phishing and I should just ignore it? Anything it could possibly be for would be statute barred by now. Thanks!