I'm also a caterer like you. I sent a text message asking me to add WeChat to say that my home is delicious. Add WeChat to transfer the deposit to me and then pack it. I am a self-service barbecue. What do you want to pack? Moreover, these calls are all from other places. I have received more than a dozen. They all want to add me to WeChat, which is probably a liar. Their purpose is that many people will report you after adding WeChat, and then steal the number and steal money.