Headlight bulb
 

So this guy did an illegal U-turn and hit the front driver side of the car. So one of the things I had to get fixed/replaced was the headlights. I had the car fixed at the repair shop. So I finally get my car, and as I was driving, I realized the light I replaced is yellow with comparison to the headlight to the right which is a more bluish light. I called the repair shop and they said they entered the serial number of the headlight and that's what they got. They are claiming that the previous owner changed the bulb of the headlight to make it more blue. So I was wondering if I could call the Audi dealer if they sell only the bulb to make the light more blue, not the whole headlight.

Btw, what I mean by blue is the blue colored lights that are on almost all luxury cars nowadays.

I have a 2002 Audi A6 2.7t