The listing, Pokemon Online Codes has ended.
It's a Tier auction. For every 20000 credits, you will get 1 card of the Pokemon Card online game.
So, in the end of auction:
- 20000 credits, you will get 1 card
- 40000 credits, you will get 2 cards
- 60000 credits, you will get 3 cards
and so on.