This is how I get the FREE2SHIP to works:
1. Click on your shopping cart (on the top page right corner).
2. This will shows your shopping cart contents including the auto added promo code. Click "Checkout".
3. Instead of filling in the "Bill To", click on "View Cart" on the left menu.
4. Now enter FREE2SHIP promo code and click "Apply".
5. The auto added promo code will be removed and replaced with FREE2SHIP.
Good luck.
Took me a few minutes to clear the card knife to get the free shipping but got my order put through!
Thanks