Originally Posted by
IanD
I take it there is no record of said credit card(s), letters from CC company demanding repayment, record of a CCJ or similar paperwork within your cousin's estate? Sounds very much like these people are chancers. A Google search/search of Companies House records might shed some light on the business ie are they even legit, have other executors been approached with such claims?. Otherwise, as advised above..."final proof" or "go away".