Well I nearly have a unmarked verminator...
Westons did indeed deliver a replacement as promised, no rust this time but a nasty chip on the verminator name plate (next to fixing bolt).

Rather than involve westons again I rang Deben. Liam is a very nice chap, he agreed to send a new plate. Sadly UPS must have had a slack day in the depot and decided to play football with my parcel because it was far from flat. Emailed Liam and he's sending another tomorrow, Fingers crossed it's flat!

James