transfer problem

I sent the reddcoin to the bitcoin address (that site is korbit.co.kr)
So, I contacted the site and asked them to return the reddcoin, but they can’t send reddcoin to me because of technical problem.
And they told me to ask you.
How can i get it back?
please help me.
alt text

transaction link is
http://live.reddcoin.com/tx/1a8d1fb34c5761fc0e9b0730840a6aece30fb7afcd259a423296d35f462ca538

so you sent to this address RuChoYxZkFTmXVYas6LqzfeQqFNrk7k2Zw ? or this address 3BtCYBLJF9Yf8A1DDKjnzKCWfpvAEHQXgg im assuming its the 2nd as its unspent

I sent this address 3BtCYBLJF9Yf8A1DDKjnzKCWfpvAEHQXgg