Can you go directly to your credit card company and do a chargeback for the amount owed to My Poupette? Tell them that you paid in advance for the authentication service which was not provided. You filed a claim with PayPal which was decided in your favor, but they could only recover $1 and you want the charge on your card reversed. That should work, I would think.
You can also reverse the charge for the fake MJ. Contact your credit card issuer and find out what the time frames are for filing a claim with them. I have had a couple of claims messed up by those idiots at PayPal so I have had to go to my credit card issuer to get my money back. The good thing about dealing with them is that they reverse the transaction so you get all of your money back, not $1.