@SRGTD thanks, yes that was part of the reason I like the SR ones because of their OEM looks and in my personal opinion the design suits my GTI. I guess BBS have done a lot of alloy wheels for VW over the years so that may have influenced in my head how a GTI OEM wheel looks.
Agree with all you've said on the diamond cut alloys. I share that view. My 18" Monza Shadows have been diamond cut refurbed twice since I've had my Mk6. Laquer started to lift on a wheel following a stone chip, so knew the dreaded white worm would soon invade. Other time was kerbing as I entered a Sainsbury's car park - oops

. I was very cross with...myself LOL.
I know there is only so many times you can have them re-cut, so at that point I'd had a enough of wheel damage paranoia when parallel parking (or entering supermarket car parks

) or tyres were being changed. So got them painted and vowed that I'd never have diamond cut wheels again.
@dubber36, I too would get them properly redone rather than buy replacements. As @SRGTD says, looks like the previous refurb job has been done on the cheap and/or too quickly. I agree that the colour of the car is crucial to selecting the colour of your alloys. Silver would look good.

@wugga, I've used both the companies that SRGTD has mentioned, Lepsons in Kent and the Leicester branch of The Wheel Specialist. Can only comment on their painting of my wheels, was happy with the work from both companies. The company, Pristine Wheels in Milton Keynes, that did last my diamond cut refurb (did a fantastic job) has since closed

.
SRGTD is spot on what you should expect to pay. TWS in 2020 charged me £336 to have all four 18" Monza Shadows repainted. But I just dropped them the wheels with no tyres as I have a good relationship with my local tyre fitter. Lepsons charged me £116 including courier insurance (optional) for repainting one of my 17" BBS Alloys using BBS's paint code - again wheel only no tyre.
If it was me, I'd get them all refurbished. As there'll be discrepencies in any colour matching no matter how good if you only get the damaged ones done. If you're wondering if I've gone against my own advice there with respect to my single BBS. That BBS is now my spare wheel in the boot.