Unfortunately I am the second owner with a 4 year old car. They replaced one caliper for me by refunding the price when I returned the leaking one.
I live in Leeds, 100 miles from Caterham Midlands and 200 plus miles from Caterham South, so short of trailering the car to them I will be doing the work myself. I refuse to pay Caterham prices for rubbish so I shall source the replacement locally for around £50.
The bigger point here, as per the other thread, is that we pay anything from £20000 upwards for a high performance car with crap recon brakes from a 1980s Sierra. No mainstream manufacturer would get away with this, even on a car at half the price, so why should we accept it on a car that will be driven fairly hard most of the time and is, if anything far more reliant on a braking system that actually works, without being reduced to crawling under the car before every run to check for leaks!
Caterham should be sourcing new parts from a more modern car or from one of the aftermarket/performance brake outlets, or make the uprated AP brakes standard fit.