On your Home screen, either touch the right arrow or swipe to the left to get to your Extra Features screen. This should contain Timed climate, Cameras, ECO Data, Valet, Ambient lighting, Wi-Fi hotspot, Dynamic-i, Tow Bar, Screen off, ASI Suite - depending what was specced on your car. Is there an entry for WiFi Hotspot there? If not it looks like you don't have WiFi fitted, or maybe the WiFi only becomes available after a data SIM card is installed. This link might help (if it works). Good luck
https://www.ownerinfo.jaguar.com/doc.../proc/G1855011