First you are not bidding, you are dibbing (picking). Once you pick it's yours you can't be outbid. Once the swap opens you can dib until you run out of tickets, but keep checking back because if others are picking your seeds then you can earn extra tickets. You will start with 4 tickets on day one, 8 tickets on day two, 12 on day three etc. New tickets will be awarded each day at the same time each day, 7pm Eastern 6pm Central, 4pm Pacific. The quantity of tickets you have available will be posted on the home page for this swap.