Horrible return policy

I ordered these crocs over the summer for my day camp job. But what I did not know was that they run big. I got a size 7 in this color and a size 6 in the purple. I only used the purple ones during the summer. The other day I was cleaning out my closet and found this khaki crocs, and I no longer want them. When I tried at least returning or getting Amazon credit I was told no because the deadline date had passed. But I don't get if it is in it's original packaging. HORRIBLE!!!!!! Will never order shoes from this site!