Had same problem. I use Google Chrome browser. Went to three dots at top right of browser and clicked on Settings, then Security and Privacy, then Cookies and other site data, then See all site data and permissions. Various sites will show. Delete cookies for Intuit and Charles Schwab.
I figured the above out after wasting three hours with Intuit chat who ultimately forwarded me to Just Answer to solve the problem, who in turn referred me back to Intuit. Had to work through customer service to get back fee that was charged - another 30 minutes. Never had this problem and been using TurboTax for years. Frustrating, but hope this helps others.
