Need to Edit Completed 2019 Return for Which Audit Defense Was Purchased

I am using the CD version of TT Premier.  I previously completed and printed my 2019 return and printed it for filing.  I imported my 2018 return as a starting point.  I purchased Audit Defense for the return during the final steps prior to printing.

Before mailing my return, I discovered I had to amend my 2018 return.  After amending the 2018 return I started a new 2019 return to import the amended 2018 return as a starting point.  When I reached the Audit Defense screen in this return, it doesn't recognize I already purchased Audit Defense for 2019 and is prompting me to purchase again.  Seems unreasonable to pay again for a modified return in the same tax year that has never even been filed with the IRS yet.  Does Audit Defense really require a separate payment for each version of a return in the same tax year or is there a work-around for this issue?  Thanks for your help!