Quote Originally Posted by Majuri View Post
If you used paypal go to your profile and then on Authorized Payment (pagamenti autorizzati) find the square bill and click on it.

In the page that opens up go at the bottom and enter your postepay/credit card as alternative payment method.

Hope this work for you
Follow this suggestion and worked for me, no money on paypal account so added an alternative payment method to the order (postepay visa electron) and everything went fine
If you pay with paypal account be sure to have added to the order an alternative payment method or it will fail forever if your paypal account is empty.

Good luck!