Today, I received a phone call saying that my house was listed for sale online and asked for real estate information. I never intended to sell my house. What happened?

First, check whether it is the same as your house. If so, call your agent and ask him to take out the power of attorney and see who signed it. If not, there is no way for them to say that the house is invalid in the follow-up of the house. If he said that the area and apartment type of the real estate license are very detailed, one possibility is that the developer has released it, but I have never seen such a boring developer. Another possibility is the people around you.