SOLVED -- How do I change discounts? I started filing with USAA ($20 off), but Uber offering free self-employed filing. It's not switching when I click their link.

You would need to contact Customer Support for further assistance. You can follow the instructions listed in the following TurboTax FAQ to contact Customer Support.  https://ttlc.intuit.com/questions/1899263

Solved - reached out to TurboTax and they advised to clear and start over, which worked (does require re-entry of all information previously entered, unfortunately).