Do utility companies send you a voucher to pay the bill with the statement every month?

"A coupon is a piece of printed paper which allows you to pay less money than usual for a product, or to get it free"
https://www.collinsdictionary.com/dictionary/english/coupon

"a piece of paper that can be used to pay for particular goods or services or that allows you to pay less than the usual price for them"
https://dictionary.cambridge.org/dictionary/english/voucher

"The utility companies are actually sending you the voucher to pay the bill with the statement every month."
https://www.goldismoney2.com/threads/%e2%80%9caccepted-for-value%e2%80%9d-a4v-%e2%80%94-best-explanation-of-this-u-c-c-commercial-remedy.160814/

"Look at the “BILL”. Notice there’s a top portion and a bottom “stub” or “payment coupon” – the portion that gets torn off where it says “detach and send with payment.”"
https://stopthepirates.blogspot.com/2019/07/accepted-for-value-tutorial-2019.html?m=1

"invoices sent to every recipient is a dividend an/or a coupon to the recipient. The utilities companies all know this to be a fact."
https://govbanknotes.wordpress.com/2017/07/06/utility-companies-send-us-invoices-instead-of-a-dividend-statement-and-we-fall-for-it/