Submission fee for free wp7 apps in the Marketplace

When you submit a paid Windows Phone 7 app or game to the Marketplace, no submission fee is charged. For free apps and games, there is a limit of five free submissions each year (starting at the account create date). But what about a failed submission? I’ve asked Matthijs Hoekstra and this is what we came up with:

To save credits, Matthijs has a temporary workaround. (Dutch alert!)