A brief look at the feedback received by the 1xbit scammers shows you will not be able to get your funds returned. The 1xbit scammers seem to be scamming on a massive scale now rather than selective scamming.

Sadly, you are one of many victims. The only chance to have of trying to do something to have your funds returned is to join forces with other victims and then take a group class lawsuit action against the 1xbit scammers - there is not much else that can be done.