I noticed some interesting behavior when trying to pay with MasterCard through PayPal.
At first, PayPal wants to authorize the card, so they charge (reserve actually) $1 to check CVC and after success they release the $1.
Then the actual payment is tried and it fails. At first I thought that's because the webshop happened to state it's in FR, so I enabled the country, but payment was declined again.
Apparently, the payment is seen as a recurring payment for PayPal. So the fix was to increase the recurring payment limit for PayPal.
This isn't intuitive, though.
Would it be possible to improve the user experience in this case? For example, a question in the app for the second payment would have been helpful. Or at least show the reason why the payment was declined, so I can immediately go to the right seeing.