I am very happy to see Supreme Couture on this list. They have been an absolute nightmare. Total con artists. They also run a number of other sites including Ultimo Fashions. They are based in England with "offices" though their items ship from Pakistan and, according to PayPal (who have judged my dispute in my favour, their head office is in Illinois.
As soon as I made my PayPal payment I knew I was in trouble because the email address was a gmail address and didn't even contain "supreme couture". The name was email@example.com. They also wanted £16 P+P despite posting the item within the UK. I argued the toss, they stood firm - saying it's a flat fee around the world - and so I had to give in and so I paid in good faith for a jacket that looked awesome (to me): http://www.supremecouture.co.uk/copper-rub-off-vintage-leather-jacket.html
My worries soon deepened. When I queried where my jacket was they said my size (large) wasn't in stock and their "expert tailors" were making one up. I got the distinct impression the had zero stock and just knock-up a cheap jacket whenever an order comes in and when it arrived I soon understood why they charged £16 P+P as it came from Pakistan.
And what I received was a travesty. It had the same design but it was a different colour (light tan instead of distressed, dark brown) and it had a different look and fit. I don't know if you understand when I say it was a different jacket despite looking the same - I'll try and get some pics to illustrate. Also, the label said Ultimo Fashions - not Supreme Couture - and the jacket (as all of Supreme Couture's jackets) were on the Ultimo Fashions website.
Upon investigation, I found out that the jacket was actually made by Heron: http://www.heronleather.com/men/jackets/men-leather-jacket-style-J212.html
and that Heron do not share their designs. Not only had they stolen Heron's design but also their images!!!
But that's not all........
I wrote a polite email to them explaining I wasn't happy, that I wanted my money back and a swift resolution. I made clear I didn't want any trouble and that I was aware of my consumer rights (and listed them). Their reply was unexpectedly cooperative but doubts were raised when they asked me to post the item back at cost (that they will later refund) as they, strangely, "lack the ability to arrange pick-up". I pointed out it's their legal responsibility to collect (not mine to post it at cost) and that their courier will easily take it back. They then launched an abusive attack, made clear they have no respect for the law or the consumer, and have now shut down all communication.
Multiple websites selling the same stuff from stolen images, gmail addresses - I have no doubt this is a couple of dodgy guys operating from home. I've learnt the hard way.