We won't know here in this public user forum.   Was it an emailed bill asking you to pay, or was your credit card charged?

Are you a TurboTax Advantage member with a standing order for desktop software?  They started charging for 2019 product recently.

Or did you choose to pay  TurboTax fees out of your Federal refund, and has your refund been delayed an unusually long time at the IRS, so TurboTax wants you to pay the fees?