I would advise you to contact Facebook about it and report the profile in question, but it could be that the consumer support takes ages to deal with your request.
Depending on the situation it might be a good idea to report it to the police, but I know this is easier said than done.
I can try to help you more directly if you tell me a little more about the situation via PM or my email address ( email@example.com
Anyway, this isn't really the best forum to ask such a question in, as it's meant to be technical support von Bandicam, etc.
I wish you luck in getting your issue resolved!
Thank you for reading my post. I hope you understand my "English".
I'm the German translator for some of Bandisoft's products and websites
(mostly Bandicut and Honeycam).