When did this happen? It seems at least on or before September 2011.

Think of it this way... You order something online and give them the wrong address. They send it right away. 7 months later you call them and tell them your mistake and want them to send it again. (The permanent loss of the item aside, how do you prove that you don't have access to the mailbox of that address?)

One difference is, we can see what the receiver on the wrong address did with your coins, and that they actually sent them to somewhere else. So your only option is find the owner of that address and ask for your coins. While at it, ask for my coins as well.