Was he born and raised in the UK ?
If you're quoting his email accurately, he certainly doesn't write like a native English speaker...more like a foreigner.
Get well soon, have a great New Year and tell this parasite to get lost.
If you want to get to the bottom of this, do as Terpe suggested above, play along with the guy and obtain full details of the place he's supposedly incarcerated in, with phone number, etc.
