Panzerwerks William Scheuch Dpm28 Dpm 28 Dp 28 Boise Idaho

purchased a dpm28 7.62x54r rifle on theakforum.net. Seller uses user name gelgoob aka William Scheuch with a p.o. Box for payment shipping. Initial contact was made 4 April 2016 for payment information. Clear instructions were given to seller to include a copy of his originating ffl copy or a copy of his driver's license for my receiving ffl to log in his transfer ledger. Disassembled rifle arrived 3 weeks later without paperwork. I have been trying to contact him since without success. I have attempted to find his ffl listed in Idaho under Panzerwerks Co or his name and no ffl is listed.