What to do if a cross-border e-commerce payment is charged back? My method for organizing a chargeback evidence packet

A while ago, a European order left a deep impression on me. The customer ordered small accessories, and the backend showed it had been delivered. More than ten days later, a chargeback came from the bank with the reason 'item not received.' The customer service team's first reaction was to send over the logistics screenshot, but I took a look and noticed that the main cross-border tracking…