Hello Paul,
Welcome, thanks for joining, and sorry to read of your issue.
To attempt to answer/ explain some the points you have raised.
Is a clutch assembly classed as a (fair) wear and tear item? Yes.
Is it unreasonable that a (10 year old) 56K car should suffer clutch wear? - I would say debatable, since this car has averaged only 5.6K/a, suggesting that it has been used on short journeys where the clutch is likely to have been used far more than say an example which has covered twice that mileage on much longer runs - hence it will have worn more despite its low mileage.
I’m in the same camp as Cliff, and unfortunately I feel you might have quite a legal task on your hands to make a claim for this, but……
‘Took it in for a service…’ Where Paul? Main dealer, independent, local garage?
Have you sort a second opinion - say at an independent Audi specialist? If not, that would be my first port of call.
Are you hearing, or have you heard any noise from this flywheel?
Perhaps you could come back to us Paul.
Kind regards,
Gareth.