Not yet... If it was sent back to me on Dec 12, I guess it will reach Croatia after holidays.
Yes, it was insured (I always insure everything, luckily), so in the morning I'll go to my post office to see what can be done.
Unfortunately, I can't re-ship it now because it's OOAK, and making another piece will take a lot of time. I can either ship it again after it arrives to me or make a refund.
This is just terrible, my customer is really upset, and so am I.