Those coins are still sitting, unconfirmed, unrefunded, in the blockchain somewhere. And without an explorer, there's no way to even track them down.
I have a user who's lost a ton of coins because the bek blockchain won't reject the transaction. Absurd.
Should be easy to recover, no different than recovering bitcoins or anything else that doesn't have proper transaction fee.
BTW, is there any way to get rid of these? I have tens of millions of them sitting around somewhere.
If syncing with the blockchain is a problem, I can set up 10 nodes or so..