It sounds like you tried to change a credit card in an Advantage account. But if you are trying to use the Advantage account--it is too late to place an order for 2020 software through that account. That account will now be for 2021 software--a year away.
If you want desktop software for a 2020 return:
https://turbotax.intuit.com/personal-taxes/cd-download/
You can also purchase the CD/download from various retailers such as Costco, Amazon, Walmart, Best Buy, Staples, Sam’s Club, etc. etc. etc.
This link Where can I obtain authentic TurboTax software? has a list of authorized TurboTax resellers.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
