Well, Alpha General is legit - it even has a
website.
The telephone number is probably genuine - +852 is certainly Hong Kong.
I hae me doots about the e-mail address of mrsrowenabentley though - might be a good laff to send her an e-mail, just to find out who/where she is (the reply will probably be from a hotmail address, just to add to the fun).
I bet you won't contact her at
[email protected] 