After you file

Did you choose to pay any  TurboTax fees out of the Federal refund, and if so, has your refund been delayed at the IRS?  

How long has it been since you filed?    Once an IRS delay goes 36 days past your original estimated refund date, TurboTax will want to be paid, so it will send you a bill.  If not paid, they will debit your bank account.