I am trading with overweightman paladinslayer code (contain 2 packs which forms the paladinslayer) for chrono-dragonknight (CDK) code
My problem with this trade is how is he able to give me the CDK if he had already redeemed the calender code into his master account
https://i.imgur.com/krerPCC.jpg?1
Do I have to provide him my username and pw for AQW? I am uncomfortable when I saw "Select Game Account"
Does it mean he have to link a game account (which is mine?) in order to use CDK on my acc?