Thanks Dusty but it is not what I said.

Client filed original return 2022 ( not with me) and has been made for him a 9465 and he paid almost $1200.

But now amended return is coming for him and his total owes is $300 after amending. He wants to pay $300 when I e-file it. 

I made original return for him till to make Amended including 9465.  I think I can delete 9465 in amending by typing explanation in part III on 1040-X?