You filed your return with TurboTax Deluxe Online Edition, not the Free Edition. If you signed up for the Refund Processing Service, which allows your TurboTax fees to be deducted from your refund, and your refund amount was less than the amount needed to cover the fees, TurboTax will send you a bill for the unpaid fees. Please see the following information that further explains. https://ttlc.intuit.com/replies/4169801