Out of stock item but appearing on the leaflet for 7-12 December 2017

I bought PS4 item no: 759278 on the November 24, 2017 and until today I did not received it but I saw the same PS4 on their leaflet for 7-12 December 2017 on sale. Now I wonder how can the same item being advertised but we told that they are out of stock. Is this false leaflet or what?