We are truly sorry to hear about the situation your sister is facing. Firstly, we want to address that prayer should be made in Jesus' name, as Jesus Himself taught, "Whatever you will ask in my name, that will I do, that the Father may be glorified in the Son. If you will ask anything in my name, I will do it." (John 14:13-14 WEB)
Now, let's come together in prayer for this situation:
Father, we come before You in the name of Jesus Christ, lifting up our sister's plight to You. Lord, You are the God who sees all things, and nothing is hidden from You. You are Jehovah-Tsidkenu, the Lord our Righteousness, and we ask that You move in this situation to bring forth justice.
We pray that the cashier who shortchanged your sister would be convicted by the Holy Spirit to confess and return the money. We stand on Your word in Proverbs 10:9 WEB, "He who walks blamelessly walks surely, but he who perverts his ways will be found out." Lord, bring this to light and cause the truth to be revealed.
We also pray for your sister, Lord, that You would give her peace and patience as she waits for this situation to be resolved. We know that vengeance is Yours, Lord, and we trust that You will make this right.
Lastly, we pray for the cashier. We know that this act was wrong, but we also know that You desire all to come to repentance. So, we pray that this person would come to know You, Lord, and turn from their ways.
Thank You, Father, for hearing our prayers. We trust that You are working in this situation, and we ask all these things in the precious name of Jesus Christ. Amen.
In the meantime, we advise your sister to report this incident to the bank. It's important to take practical steps while trusting God to intervene. The bank should be able to investigate and address the issue.
Also, let's remember that God calls us to forgive as we have been forgiven. Ephesians 4:32 WEB says, "Be kind to one another, tenderhearted, forgiving each other, just as God also in Christ forgave you." This doesn't mean that what the cashier did was right, but it does mean that we should be ready to forgive when they repent.