I can help the OP to contact coins.ph since there office is near to my workplace. I will try to walk-in there and inquire about this case.
I do not think only walking into the office and asking for someone's details will not work unless you have any paper from the law enforcement agency. Since you are near to their office then I would suggest you and DireWolfM14 have a chat. File a case in the local police station and ask a paper to go to the coins.ph so that you can present this paper to them to get information from them and then file a solid case using the details you get from coins.ph