TL;DR - when online shopping, adding your Mondo card to a PayPal account works perfectly when the merchant doesn’t allow prepaid cards.
Just a little tip I discovered for anyone that ever gets their Mondo card declined while ordering/buying online.
I wanted to start a monthly subscription and wanted to use my Mondo card as the payment. The card was declined on the reason of “we do not allow prepaid cards for monthly subscriptions” (this was at origin.com).
I discovered a workaround for this problem when I added my Mondo card to my PayPal account. Chose to pay through PayPal, then selected my Mondo card in PayPal, transaction went through perfectly and the subscription is now setup to come out through my Mondo account.
Just a little something for anyone to try when you’re trying to purchase something online and the merchant doesn’t allow prepaid cards.