well that sucks, pretty sure i paid around €60 for the side bits
i found those cheap polish things on their official web site when looking for arch linings as most of my right-hand one has been ripped away.
they're around £5 in polish prices, but i'd rather get an official one than some dodgy knock-offs as the wheel linings are different for the cupra and standard leons
i presume the undertray parts are identical for that platform though, otherwise you'll have fun come fitting time
and they are taking the piss with their shipping