2019 q5 sline diesel missing wheel locknut key

hi,
just bought her indoors this motor 2 months ago. she is well happy...

however the brakes need doing but we have not got the key for taking the wheels off. Where do i get a replacement? How much is likely to cost?? are third party ones available??
and cost

cheers.

Take it into Audi or a VAG specialist where they will use the master set to determine which of the 20 or so variations used and a new key is £77.82, I don’t know if they charge to obtain the code.

cheers and will do.