The same thing happened to me with pcs.co.uk - contacted administrator, I actually bought the domain from them, then they realised the assets were already sold to someone else and it was included so refunded my money as they couldn't sell it twice. They did however give me the new buyers details and I managed to contact them and buy the domain from the person who bought it from the administrator.
So perhaps ask the administrator for the buyers details who didn't complete on the transfer, it was perhaps as a package with other assets and the domain isn't all that important to them so they may sell it cheap to you and could instruct the administrator to release the domain to yourself.
