I didn't buy online, but I received a courier. What happened?

I think we received the courier without online shopping because our relatives and friends forgot to inform us when they bought it, and the merchants sent it by mistake, defrauded the package or leaked information. Be careful, ask relatives and friends, contact couriers and merchants, check the contents of the package, and call the police if necessary. If you are not sure, don't sign for it. Protect your rights and interests.