After you file

For what year?

 

Ideally you should go back to who did it and they should amend it for free if it was their error.

 

For 2018 you could use the online version by first recreating the original return exactly as filed.  Then pay the fees and say to mail it and print it out so it think you filed it.  Then when it matches every line you can amend.  How to amend an Online return   https://ttlc.intuit.com/replies/7276596

 

For2018 or  prior years you can buy the Desktop CD/Download program here, https://turbotax.intuit.com/personal-taxes/cd-download/

 

You can recreate the original return using the Forms Mode.  Then say to mail it.  How to amend,  https://ttlc.intuit.com/questions/4667229-how-do-i-amend-my-2018-return-in-the-turbotax-cd-download-...