Where To Get Trial Key?

I have lost my audi car key does anyone know where to get another key and how much it will cost me?

• Whilst out shopping yesterday afternoon My 3 year old son took the car key out from my bag in an attempt to open the car door. As my older son has attempted to carry his brother out of the trolley and place him into the car, the key has dropped onto either the floor or on the trolley. My oldest son ran back to put the trolley back before I notice it was gone. By the time he went back to the trolley the trolley had been taken by somebody else whom I presume had no idea that the car key was in the trolley. The model is an Audi A3. Its a 52 plate and was the only key given to me when I brought the car from the previous owner. I spent 9 hours both in the car park and in the supermarket looking for the key. I have tried to contact Audi however their service and parts section are closed on Sundays! Can anyone help?

• Answer:

  Sadly you have to wait for your Audi dealer to open, probably the service or spares department, not the showroom. To identify the right key he may need your original service book which will give him the number to order the key for you. Otherwise they can identify your vehicle from the chassis number (!) possibly your registration number, but that isn't set by the factory so you can't guarantee it. This shouldn't take more than a couple of days :(