Hi Pops
Here are Hammy's thoughts and don't take any offence from them, they are only what I would say if you were stood in front of me in a Dealership
I've seen clutches wear out, and I mean worn out, not faulty, within 2500 miles. Clutch slipping when warm could be wear and tear in which case it's not going to be covered under any warranty. You just have to live with that. However it can and probably will be a weak presure plate, which will be warranty, get them to keep the parts and show you them. You will see if they are worn.
Why have you already started and logged a complaint with Peugeot warranty, there might not be anything to complain about.
Graham is in the service department, not on it
You havn't got a grievance yet and no-one buys a car for the benefit of reliability. You buy it to go to the shops and cars are intrinsically un-reliable and wear out.
The dealer, probably, would not have closely inspected the clutch before you bought it.
If, and it's a big if, you wore out the clutch why are you not prepared to pay for it?
Good faith is often mis-quoted and it was working when you bought it.
Bit early to involve the RMIF, who are the NCS? National Crime Squad?
So then, now the helpful bit.
Let them strip it down, if it's worn try the weak pressure plate argument, if it's really, really worn, it must of been like that when you bought it and the dealer should pay, flatly refuse to pay, and argue that it was like that when you bought it.
If it was you................stop riding the clutch!!
Please don't take offence at my humour, 30 years in the motor trade has made me like this
Hammy