I assume you mean a plus 4 (one of the last) not a plus four CX series since your post is in Classics. If I'm correct there should be a jack (and handle for same) plus hex wheel nut tool and thor hammer, assuming you didn't spec alloy wheels.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone