If you have an Android phone or a compatible tablet such as Google Nexus 7, you can use the Google Wallet App with a virtual prepaid card that can be funded with any credit card.
I do not know whether Citbank would consider this a cash advance, they often consider lots of things cash advances, so absent evidence to the contrary I would avoid using Citibank cards for this.
The cool thing about this, and why it’s a great very limited time opportunity is that the Google prepaid card is being discontinued and balances remaining on your card can be returned to you by check.
You have to reload the card by September 17, and the card will hold up to $8000. But there appears to be a limit of $500 per day and $2000 per month in funding that you can add to the card, so with only 4-5 days left this appears to only offer the opportunity to top off with $2000. And you’ll have to verify your identity with them to do this.
The prepaid card will be discontinued October 17. And when you request a check for the return of your balance on the card at that time it may take up to 8 weeks to receive. So you’ll be floating the funds for three months, not everyone is in a position to do that.
Expect to pay a $2 monthly maintenance fee for 30 days of inactivity on the card, and a $5 fee for the balance refund check. So $7 for $2000 in spending on your preferred credit card, great for meeting minimum spend requirements if you are in a position to pay off the cards with cash and wait to get the money back.
So short-term opportunity to download the Google Wallet app, use their prepaid card, and get the money back.
(HT: Reader Mike L. channeling this Flyertalk post)