Hi Jimmy. Sorry to hear you’ve lost yours as well.
I haven’t replaced mine yet, as I got quoted the same price from VW. I’ve got a camera up now, but am worried if I replace them, they’ll get nicked again. I have looked into just getting some centre caps (that clip into the same place on the wheel) but can’t find any that fit. I’m also wondering if there’s some way I can put some sort of locking device, when I do replace them.
A friend of mine can get the caps trade, for £275 for 4 / £68 each, but it’s still a lot of money.
There’s also a guy on eBay selling two for £35.50 each + postage, however they are off a beetle & have a different part number. They’re also from 18” wheels, so I can’t see why they won’t fit.