After you file

I found this information on the Turbo Tax website in the Assistant menu: 

 

How will I know if I'm approved for Refund Advance and how long does it usually take?

If you qualify for Refund Advance and are approved for the Turbo Visa Debit Card you’ll be notified by email of the approved amount and you’ll be able to start spending online, typically within 48 hours of the IRS accepting your return.

 

 

 

 

So it *seems* that the ONE HOUR promise only refers to the time it takes to get your TurboCard information, the actual funds take much longer to process?