Same [***] happened to me. Got a missed call a minute ago with no message left. Called right back a second later and got a message saying they are closed
They call me several times a week. Anytime you answer and there's nobody there, its an automatic dialer waiting for a sales rep to pick up the next victim. The reason you get a recording saying they are closed if you try to call them is because they do not accept incoming calls. They do not want to be bothered by you the way they are bothering you.
Got a call from this number saying my car's warranty has expired. Must be trying to sell extended warranty, or some scam. Told them to stop calling, got another call from the same number the next day! Had to block the number.