As of November 16, 2021, GeForce Now users will temporarily* be unable to complete purchases in-game.
This change only affects direct in-game purchase methods. Serials codes and item keys can still be redeemed in-game. For players using GeForce Now to access the game who wish to purchase gems or game serial codes will need to do so outside the game. This list of authorized retailers will assist on where to locate gem and game serial codes. Additionally, be sure to check the Guild Wars 2 Online Shop for available serial code purchase options.
*We do not have a specific date on when the ability to purchase in-game will be made available to GeForce Now users, but we are actively working with GeForce Now/Nvidia to resolve this. This article will be removed once the option becomes available.