I haven't bought anything online recently, but I got a message today that I bought something. What should I do?

Probably a liar, you can ignore it if you don't want money, and refuse it if you give it. But scammers will ask you to do some things, such as asking for personal information, asking for money, asking you to call a certain number, and asking you to log on to a certain website, thus defrauding personal information, money, phone bills and so on. If there is no such suspicion, and it is the same as the short message bought online before, is it sent to the wrong person? In short, beware of scams.