Be surprised if they can match the colour mate. Apparently even if you get a new wheel the shade could be different. With the colour shade in the laquer even 1/2 coat heavier will change the colour finish.My localised repair is this Thursday coming. I'll report back on the result!
They might look at it and just ask you to go and get it done professionally.
It is good in the end but would have been better and less hassle should they have sent it for professional repair in the first place. The amount the fitter took off will make it more difficult for the wheel repair guy to match them all. And all the running around to get it sorted was at my expense