The buyer wouldn't get any sort of warranty on these as they weren't the original purchaser.
Specialized don't spec a wheelset that's worth anywhere near £240 (+£35 for the rotors) on a bike with 8 speed Claris, and overly optimistic pricing tends to struggle here vs, say, eBay.
This particular wheelset from your £1800 bike, but they're also available on the £1200 Claris model
https://www.specialized.com/gb/en/diverge-e5/p/199973
https://www.bespokecycling.com/bike-selector/products/specialized-diverge-e5
The buyer wouldn't get any sort of warranty on these as they weren't the original purchaser.
Specialized don't spec a wheelset that's worth anywhere near £240 (+£35 for the rotors) on a bike with 8 speed Claris, and overly optimistic pricing tends to struggle here vs, say, eBay.
Anyway, GLWS...