Brothers and sisters, think of what you were when you were called. Not many of you were wise by human standards; not many were influential; not many were of noble birth. But God chose the foolish things of the world to shame the wise; God chose the weak things of the world to shame the strong. God chose the lowly things of this world and the despised things—and the things that are not—to nullify the things that are, so that no one may boast before him. It is because of him that you are in Christ Jesus, who has become for us wisdom from God—that is, our righteousness, holiness and redemption. Therefore, as it is written: “Let the one who boasts boast in the Lord.
(1 Corinthians 1:26-31 NIV)
I pay people after the due date all the time, but I’ve never heard this ‘late fee’ thing. I recommend you don’t add that for the sake of repeat business with us.
A client who hasn’t paid me for over 5 months, refuses to answer my calls, emails, and letters, and only had the opportunity to say that because I called him from a number he didn’t recognize.