I have a Visa debit card (Verified by Visa) attached to my Microsoft account at billing.microsoft.com
I am able to purchase apps/games from Windows Store and Windows Phone store
But the problem is that the same card doesn't work on Xbox Live marketplace on 360 and XBL Games app on Windows 8 ( Can't purchase DLCs of Adera and extra content of Gunstringer) although I could easily buy apps / games from Windows Store .. Just in-app purchasing is blocked
I am unable to add the card on xbox.com as it says the card is not authorized
I am aware that auto renewal works only on credit card but I have auto renewal OFF in my settings , that might be the reason why card isn't getting authorized
Microsoft you are losing a lot of young customers in developing countries who have a debit card but don't have a credit card
I am unable to purchase content worth almost $30
Btw I stay in India
I hope you solve this problem .. Merging Xbox Live payment system with billing.microsoft.com will also do