Free Edition is for simple returns that file a 1040 with no additional schedules, and is free as long as you don't select any add-ons or upgrades.
Review your fees to find out why you're being charged. Then, follow the directions to remove any unwanted charge:
For more information refer to https://ttlc.intuit.com/replies/3300257
Please note While you’re welcome to downgrade, you may miss some features—and you’ll be prompted to upgrade when those features are needed.