Anyway to id this buyer.  I have heard of some sellers contacting the PO in the area where all these parcels were allegedly going astray and alerting the staff to these claims as well as contacting AP and letting them know they are being blamed for all these lost items. There needs to be a way to outsmart scammers if indeed this is what they are.  Such informing the buyer that due to the large number of lost items they have had you have done just that and that their claim/s are being investigated by AP.