without proof your complaint is worth nothing, include evidence of what you say, and try to contact their representatives or if there is no answer post all the evidence on this thread https://bitcointalk.org/index.php?topic=5266815.0, hope your case can be solved.
Each complaint must be accompanied by proof of a valid report, but the 1xbit platform has collected many reports of freezing funds. Several reports that have been indexed and proven that the 1xbit platform is not feasible to use.