vRS n/s/f fog light and housing

My NSF fog light and the honeycomb housing got wiped out yesterday - the fog light bulb is still intact but the glass is smashed. In terms of replacement I'm guessing the bulb is a sealed unit and the surround is another item that simply clicks into place once the sealed unit has been installed.

Can someone confirm I'm correct and then advise me where to go to get a replacement?? Is there an alternative to my local Skoda dealer?? Cost of replacement??