Too late to edit previous post.

The boat only sold 2 days ago, not 10 as you claimed. You will now have to wait until 4 days have passed before you can open a dispute.

You really shouldn't have relisted it yet until you close the dispute. Even though the kid supposedly bought it (oldest excuse in the book, followed by the neighbour's goldfish), if it sells again, and the first buyer decides to pay for it while the dispute is still open, you will find yourself in a bit of a pickle.