Belling synergie oven?

Hi all, I was replacing the grill elements on the Belling Synergie top oven/grill. The right hand side went in no problem. As I pulled the left side grill element off, the wire "pinged" back into the hole. I need to now get behind the oven and cant find the release screws or fastening devise which holds the oven under the cabinet. Can anyone give me a clue.? A diagram would be even better.

Thanks