You have to contact snow-winter-boots website Customer Service and Ugg directly and arrange to sell them retail in your store.
If your store is thrift this may work, but why you would pay full price to sell them for less I don't know.
I fit says UGG (in any form, UGG Australia, etc) and you bought them in USA its made in China.
Deckers Outdoor Corp owns the USA trademark and all their stuff is made in China. UGG can no longer be used in Australia as a trademark either. UGG is a type of boot/shoe, cant be a name down under, but you can still by that style that are made down under, just be careful. Warmbat is a make that is genuine Ausie and sold in the USA.
Ugg is a kind of Australian brand, I think, but most of the uggs are made in China, because the cheap cost of labor force. that's why the uggs from China sell at good price.
here is a China online store www.snow-winter-boots.com, wholesale and retail UGGS and many other things, if you have the needs of uggs, have a look at the online store.