Sorry to hear your having some issues mate and yes your correct I think at that stage and without any comms from the seller most noobs would have hit the panic button!
WI is not a dealer I have dealt with as yet tbh, but I have tried to, they just couldn't source one of two pieces I was after that's all, but I have only heard great things about them and my email's were answered within 24 hrs each time.
My rule of thumb is that regardless of payment methods if they are trusted on the forum then I will have some form of support should things go tits up, that's not to say I will run to a mod at the drop of a hat but if I have a real issue then I'd expect some help from the board with it.
Not used WU yet and prefer PP simply because it's online and it's bloody easy to use, the protection pp offers me doesn't really enter my mind as far as TD's are concerned tbh, but for noobs it's not that easy, they have no basis to trust a dealer other than we all say 'yes use so and so, you can trust them' we aren't the one who has just popped $ 3-400 on a rep are we?
Scammers are another thing altogether, fucking hate scammers! They will always be around and much like stores accept that some stock will be stolen from their shelves, then the dealers who sell over the net must accept that the same will apply to them too, don't get me wrong I do feel for the dealers especially WI who are a one man band as such, they did everything they could afaik inc sending replacements out a second time to the guy to then have him ask for a refund again! What they should be doing is looking at more ways to safeguard themselves against these scammer fuckwits now and for the future....................my 2c