In the File section of the program on Step 1 after you were shown the Order Summary, the following screen asked how you wanted to pay the TurboTax account fees. The options were Pay with a credit card or Pay with your federal tax refund. Apparently you chose to pay with the federal tax refund which has a $40 processing fee.
If you have not filed the tax return you can remove the processing fee, see this TurboTax support FAQ - https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-account-billing/remove-pay-refund...
