Aint these the ones with the wing type design on the back of the jeans? Of what I ve seen of them ( very little and only pics on the net sadly) they look reasonable enough, dont know what the denim quality is like, but there are a lot of fakes about cos they are quite hard to get. Check this out ;
I got one pair of rich yung jeans, they are nice I like the design with the wings on the back pockets. They look like a levi's 501 denim but they're selvedge denim. Concerning the quality, it's not comparable with RMC or Evisu but they still very comfortble and pretty jeans...
As mentionned by Dunny, the brand is very rare so there are lot of fake, be careful! You got a list of the official retailers on the official myspace of the brand.
He probably did enough to cover his back by saying the word "like" Its a bit like selling something as Replica, so long as you dont say its exactly the same or the genuine article when it is not and the item doesnt infringe any copyright then its difficult to do much about it.