This website is a total scam. They sell "birkenstocks" at way lower prices and offer free shipping. It sounded to good to be true and it is. The shoes arrived in a birkenstock box but from China and are clearly fakes. The quality if the shoes are way below standard especially compared to real Birkenstocks. You can tell because on real Birks the logo is engraved into the letter. On the fakes, it's just stamped on.
When I tried to email the third party billing company, it was a fake email address.
So beware, do not buy any shoes from this website!