@Zebra3 , I am sorry to hear of your consternation with the performance of the TurboTax software. Without more information, it will be difficult to understand and/or help you with this issue ( both 2020 and 2021). IRS letter demanding a change in your return should have provided an explanation as to what they disagree with.. Perhaps you could use the information from this page to contact support:--->> https://support.turbotax.intuit.com/contact/
The other option is to provide more info about your situation ( without any personally identifiable information ) here and one us volunteers, will indeed help you to the best of our abilities. Need -- (a) how much did you receive as shown on docs from the IRS ( for each of 2020 and 2021 ); (b) did you tell TurboTax as to whether you received the full amount or a lesser amount; (c) did TurboTax ask you to fill out the form reconciling the amounts for each of the years ; (d) any other information such as filing status; if you are citizen; if you have SSN etc. etc.
Look forward to helping you
pk
