I am a bit confused.
I had my AC checked out and I guess my plumbing too because two different workers came the same day.
Neither handed me an invoice and one said I would get THE PAID receipt on my email. I did.

I am used to getting an Invoice saying what is being done. Then day work is finished and I give worker my Visa to pay, I understand the office will give me a receipt.

The INVOICE "stating work to be done" is what I need for my records. Otherwise, a You Paid receipt means nothing.

Also my name is Judi Picha not Bob Picha which still appears on the invoices.