One thing I have found with Sellers when getting ready to close and submitting receipts for agreed upon repairs is often times will send over an original quote or proposal. This is not considered a paid receipt. Not only do you need to provide an invoice but also an invoice that shows paid in full with no balance due. It is also possible to run into an issue last minute if the agreed upon repairs required that the vendor for a specified a repair is certified or licensed. Be sure if it states a licensed or certified vendor that you question the person or company you are hiring if they are licensed or certified and how you can validate this.