I thought i had to push the ~ or ` key to open the console but my PC simply ignores the command. Can anyone advise?
Start game -> Help & Options -> Game Settings -> make sure you have this enabled(There is an image in the source link for the page you are looking for)
Then You can go to Help & Options -> Keyboard/mouse -> and change your console key. The default is " ` "(Tilde Key).
Hopefully this helps.