do audi supply lock cylinders to match my key?

The question is which is original the door and boot lock or the ignition lock? I think one has been changed somewhere, probably the ignition lock but not by an Audi dealer as they would order it to the chassis number so it would match what's on the car.

Your options are order a new key and see what it fits then replace the non matching locks, or order a whole new lock set. Either will need keys coding to immobiliser
 
I should be able to change the blades from the keyfob. I will pop into and audi dealer and ask the question I think as its awkward at the moment with my boot solenoid dieing and my key not able to open the boot