How to write the announcement that the property prohibits merchants from selling cards?

The announcement that the property prohibits merchants from selling cards is written from two aspects: why it is prohibited and the consequences of selling cards. Judging from the relevant public information, the announcement that the property prohibits merchants from selling cards is a notice language and should be aimed at people who receive and sell cards. The attitude should be serious, the tone should be playing cards, and the consequences of receiving and selling cards should be clearly stated, so that people who sell and buy cards are afraid.