I just did the update to the bill payment stub email this morning; I agree the wording is off when we are paying them.

Here's what I did:

Desktop Version Solutions 23.0 is my system.

Clicked on Edit Menu, Clicked on Preferences, Clicked on Send Forms, Chose Company Preferences,

Made sure in the drop down "Bill Payment Stub" was there. In the lower left-hand corner is the option to "Add Template", clicked it, changed the wording to my liking, clicked as my current default and saved. Then when I clicked on the "edit" button I could view that my changes were there and saved.

Hope this helps you as well, have a great rest of your day!