As World of Warcraft Classic does not come with Armory, there is no way to determine a trade takes place in which server. As such, all sellers are required to keep a video recording for all trade conducted in game. Sellers may still provide screenshots as proof upon completion of order. However, if there is any trade dispute or issue with the order, sellers must be able to provide the video recording as proof of delivery.
Video recording must show either one of the following:
1. After login to the game, showing the character ID and server name; OR
2. From the in-game interface, sellers are required to type the customer's character ID in the mailbox. During this process, the system may suggest a few character ID (including its server name) for sellers to select. Once the ID and server has been confirmed, sellers can proceed to trade based on the delivery method selected by customer.
Kindly take note. Thank you.