CaroleW, I noticed the Lynn Hilditch welcome too, but only subsequently. I was a member in 2014, and have used them for their GRO Consul births, etc. which is free.
An invoice/receipt on my account on familyrelatives.com website shows me the James email was genuine, though I should have been wiser....
I have a debit card which I use only for internet purchases, and never keep more than a couple of hundred pounds in it.
Bevj, I left a message on their Facebook, a message on their "contact us" and a reply to James's email. I don't use Twitter, otherwise I would've left a message there too.
Nanny jan, thank you for the link, I'm now forewarned.
A very big thank you to all.
Update: Credit card purchases refunds start at £100; fortunately I made the payment with a Visa debit card which has no starting amount. Nationwide are now instigating a Visa dispute and I should have my money back in a few days. He'll probably have his hand slapped now, Suey. Thank you again.