It is important to note that the orders created by this Action are not charged immediately. They get picked up by the Autocharge Thread - which runs, IIRC, twice a day.
One of our Developers looked into this for you and discovered the problem: if you do not choose to specify a Pay Plan, the AutoCharge flag does not get applied. This has been resolved and should be released sometime in the near future (sorry I don't have an exact ETA for you).
In the meantime, I recommend you set up some Pay Plans to use because the Action will correctly set the AutoCharge flag for those.