Hello Kos2jz!
To list and sell items on Gameflip, your Gameflip account must meet one of the following conditions:
- You have added a credit or debit card to your Gameflip account (prepaid card is not included). Simply go to Menu > Settings > Payment to add a credit/debit card
- You have been ID verified
- You have a long and successful track record of selling on Gameflip
I can see here on your account that you have added a credit card.
Has your issue been solved?
God speed!