I tried to order a free sample and it wouldn't let me do it.
Response from Simply Argan:
The travel sized products are not free but free with any purchase. There was a glitch for a short period where people could add these to the basket without a purchase and this was picked up on by freebie sites who advertised this as a free promotion, which it was not. However, free samples of certain products are available on our samples page. We are sorry for any confusion.