There is no reason for a popular platform that respects customers to make false reviews, most likely they are trying to hide something, so expect that they are scammers and you may lose your money.
Avoid using cloud mining, it is useless and 99% of the sites are either fraudulent or will not achieve a return on investment in them.
Try to communicate with them, but I don't think they will return your money.
Try to find out where the company is located and start the legal procedures.
Check --->
https://bitcointalk.org/index.php?topic=1425951.msg15085823