My boot has stopped opening, I press the button and the window goes down but the door does not unlock. Iv tried the key and NO luck has anyone got any suggestions and I can't open the boot I can't get to any of the screws or bolts to have a look what's going on

If the window is dropping when you try the door then the door handle switch is working o.k. It is most probably the door lock solenoid that has failed or a bad conenction.

This thread explains how to open the boot if, like yours, it is stuck shut. Will involve dropping the window completely and working through the window or dropping rear seat and climbing into the boot !!

Have fun. https://www.landyzone.co.uk/land-rover/rear-door-wont-open.339912/#post-4439765