Contest closed? we designer need more explanation about this

i recently joined a contest here
helps us design a logo, invitation to all designer - Logo Design - DesignContest.com
but after that this contest suddenly closed.
To admin: care to explain what happen? i'm not design a logo just for fun. I'm invest many time just on one logo.

fraud was detected with payment for this contest.The contest was put on hold until further investigation. Unfortunately online as well as any other businesses are always exposed to certain fraud risk level. DesignContest has already implemented processes to mitigate such risks and constantly working to improve fraud detection.

thanks for the reply sharie. well if that's the case can i withdraw my entry? or please remove my entry. That fraud CH will use my concept for sure even with his contest closed.

The contest is hidden so the the fraudster has no way of even seeing the entries also this ch fraudster is banned not allowed on the site