Since the address is valid, Duelbits should have received it. So, there is a possibility that you can still recover it, but it will greatly depend on them. I think you did not double-check your inputs before confirming the transaction; if you do, though, it was not 'comprehensive.' We all know that this happened because of your negligence; it's good that you seem to be aware of it. Have you tried bringing this up on their thread here?