Can anyone tell me how to remove the rear back seat out of audi A4 saloon 05 reg?

I have removed the bottom bench seat part, that was easy but i can't work out how to get the back seat off and the Audi garage won't tell me cause of health and safety?Can anyone tell me how to remove the rear back seat out of audi A4 saloon 05 reg?Need pliers, gloves, and a screw driver.