Get a copy of your receipt transaction and use the following phone number to contact PayPal at (402) 935-7733. Direct your attention to the reddit account and must speak to reddit admins in order to cooperate and provide info. If it gets out of hand, PayPal will either file a lawsuit, shut down the profile, or send him to jail.
And whatever you do, DO NOT SHARE THESE RECEIPTS WITH ANYONE? Got it?