Hi Charlottesh,
dkwholesale.com has all of the indications of being a legitimate supplier - has been online since 2003, physical location and contact details published in their website, with a domain based email address, and uses safe payment methods. Although I have not seen any reviews about their products' quality and authenticity, this supplier is recommended at this forum I found online - Link hidden: Login to view
And from their website
Hopefully we hear from SaleHoo members who had the chance of purchasing from them. :)