A documented test purchase turns an argument about a listing into physical evidence. Platforms and payment processors both treat it as the strongest proof available.
Screenshots show what a listing claims. A test buy proves what the seller ships: no brand packaging, wrong materials, replica serial numbers, or a generic item in branded wrapping. That gap is the counterfeit case in one box.
Photograph the outer shipping label, the unopened package, the unboxing, and the product next to a genuine unit. Keep the order confirmation, tracking number, and payment record. Breaks in that chain give the seller room to dispute.
Test buy evidence travels. Payment processors, hosting providers, and domain registrars all accept it in abuse filings, and it carries far more weight than listing screenshots alone.
Test buys cost money and time, and obvious photo-theft cases rarely need one. Reserve them for high-volume sellers, appealed rejections, and cases heading toward payment or legal escalation.