Allowing ****mers to use Mica Hardware cars on Facebook as a competition

I just wanted to find out why Mica Hardware does nothing to stop ****mers who through the past few years, keep on putting posts on Facebook that you can win cars through them. Unsuspecting FB users give information which is then apparently used by these ****mers for unknown but undoubtedly, sinister means. Surely there is a way to trace and stop them?