After some time elapsed, and polite messages during which time I gave the vendor a fair chance, I got in touch with Pay-pal and initiated proceedings. It went to its full length without any reponse from the so-called vendor and Paypal finally came up with the goods and recovered the money.
Well - it's not in the bank yet but they say it should be there within a few days.
So, well-done Pay-pal.
The vendor :- mobile eyes LTD T/A WET NETS ANGLING has a history of other buyers who have had the same problems so I leave it up to you. I'd recommend 'supping your porridge with a long spoon' if you go near him.