Affiliate codes cannot be applied to any additional accounts created on a GGPass. If an affiliate code was used when a GGPass is created this will apply to the first account registered on that GGPass. If no code was used when the GGPass was created, one cannot be added retrospectively.
Requesting to close accounts with the intention of opening another or creating multiple accounts to add an affiliate code is prohibited and against GGPoker's terms and conditions. Players or affiliates who do this or encourage abuse of the system may have sanctions applied.