Item Restoration Failed. I Didn't Get The Item, And Now It's Gone From The Restoration List

I accidentally sold the “Lorewalker’s Notes: The Lich King” item from Lorewalking.

Since I like to keep this sort of item, I tried to restore it.

But the item never arrived, and now I can’t try again because it disappeared from the restoration list.

You got the generic Blizz email saying that it was successful?
I’m kind of surprised it let you restore a common quality item or quest item?

Yes, it’s even in my tickets.

(I’ve hidden my name for privacy reasons)