If you still have a valid code, you might be able to get them. I contacted EA's customer service a couple weeks ago, I didn't pre-order, I just wanted those items and was willing to pay for them individually, but they said no. (I'm only talking about the few promo items that are not available on the wiki's download page (PC version only), Final Reason, Dalish Promise Ring, etc.)
I contacted customer service using the chat feature on the BioWare Social site, I think, or maybe some other EA page.