Visa Checkout is offering a $10 Bonus when you add a Capital One or Bank of America card to the account. They have offered a similar bonus for other cards as well in the past.
Bank of America Offer – Receive a $10 Prepaid Reward Visa Card when you sign up with a Bank of America Visa debit or credit card by 3/31/2015. To get the $10 bonus, simply sign up for a Visa Checkout account, no purchase necessary.
Capital one Offer – Receive a $10 account credit by enrolling a Capital One Visa card with Visa checkout by April 30, 2015. This is a targeted offer, unlike the BofA offer, but if you have a Capital One Visa card you can still try enrolling to earn a $10 account credit. No purchase is necessary.
Visa Checkout is similar to PayPal. You can breeze through checkout when you’re shopping online with a single sign-in anytime you see the Visa Checkout button. No need to enter your card number every time.