Koltira's Chestguard of Triumph Heroic lost

I just want some help regarding my purchase. I purchased Koltira's Chestguard of Triumph Heroic via points today and thankfully it was sent in my mail, however, when I tried to click the mail the mailbox closed and I never received the item. Upon checking my bags the item was not there. You could check my purchase history to see that I have purchased this item. I know this is not a big deal for you guys but this is for me since I religiously collect points and play a lot. Please allow me to anticipate your help and generous reply. Thanks.