@r34tr783tr78 is right, provide some proofs to make your claim more believable. The reason for providing evidence is to prevent false accusations from happening which is pretty damaging to any entity or person.
OP may have not provided enough proof in the scam accusation but Atomars are proven scammers. In
this thread, there are about 3 users complaining about their funds getting locked up in the exchange with no hope of recovering it.
I sometime back created a flag against them. Please support it -
https://bitcointalk.org/index.php?action=trust;flag=2745