How to write an announcement in a supermarket that has no paper but only 1 yuan coins?

Notice that our store currently does not have one-yuan coins and does not support cash payments. We apologize for this.

Succinct and elegant, express clearly that I lack one yuan coins and it is not convenient for cash payment. It is not that I refuse coins. Finally, I express my apology to consumers.

Whether it is illegal to refuse cash depends on the country you are shopping in and the cash currency you use. In China, it is normal to be rejected when using U.S. dollars, but you can still use it. If you refuse to accept cash in RMB, it is illegal. In addition, whether it is illegal to refuse to accept cash also depends on whether there is a sufficient reason for the refusal? For example, you definitely don’t want damaged cash, and you don’t want counterfeit money either. Cash payment is a method of payment, and there are many payment methods, such as transfer, wire transfer, invoice, etc., as agreed by both parties. But remember, as long as the transaction is face-to-face, cash payment cannot be refused.