Do you mean the autorenewal for next year's program? Or what exactly? What do you want to change from and to?
How to update my Advantage account information
https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-update-or-confirm-the-info-in-my-...
TO CANCEL ADVANTAGE
You can sign into your TurboTax Advantage account and under Your Product, select to remove product. Once you remove the recurring product order, the TurboTax Advantage subscription will be cancelled, as well.
How to Cancel my Advantage Account
https://ttlc.intuit.com/community/downgrading/help/how-do-i-cancel-my-turbotax-advantage-subscriptio...
