services for cash only, how to convert FRNs to Lawful money?

[Keith Alan]

hi Keith Alan, that was my first thought too. "PAID IN LAWFUL MONEY CASH IN FULL" but that is not technically a demand is it?

I think it technically is a demand. I certainly don't want unlawful money, and I won't accept it. I'm demanding payment in lawful money for goods provided or services rendered. The receipt is for the buyers protection, in case I forget he paid.