IRS sent letter requesting to resend copies of my e-filed 1040SR page 1 to 3 and label them DO NOT PROCESS. How do you do this?

[DoninGA]

To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

Scroll down to the bottom of the screen and on the section Your tax returns & documents.  Click on the Year and Click on Download/print return (PDF)