You can't reimburse God
You don’t have anything that can equal what God already paid for you. Why do any of us think we do?
For you know that God paid a ransom to save you from the empty life you inherited from your ancestors. And it was not paid with mere gold or silver, which lose their value. It was the precious blood of Christ, the sinless, spotless Lamb of God. (1 Peter 1:18-19)