Don’t suppose you have a link handy do you please?I just purchased a new set from eBay - China so takes a few days to get here but they look and feel identical for £8.99 -4bolts and spline adapter.
If Boxy's offer does not work out you may be able to find a genuine Audi key with the right splines on ebay - https://www.ebay.co.uk/sch/i.html?_...TRS0&_nkw=audi+locking+wheel+nut+key&_sacat=0
Cheers Spike