It looks like the rim is called the Magnum and the VW part # is 2GJ601025DFZZ.
I was able to find it on the Canadian VW site, LINK
. but on the USA site the part# says no longer available.
I was able to find that part number on other US based websites that sell OEM parts such as ECSTuning
but they don't have a picture, so I would probably contact them to confirm before I just ordered them...assuming you're willing to pay their prices.
You might be able find that part number in another supplier outside of North America if you're located elsewhere.