Why not contact Which Legal Services tomorrow for clarification. Prior to contacting them draw up a list in chronological order starting with how the caravan was purchased over the phone and S75 used. Then list the issues. Try and keep it brief otherwise too much random information can confuse anyoneUnfortunately while I was reading the CRA
I also found the section below, so now I know why he's insisting my caravan inspection tore/cut the vinyl under the locker tray...
(18)There is no entitlement to receive a refund—
(a)if none of subsections (10) to (12) applies,
(b)to the extent that anything to which subsection (12) applies cannot be given back in its original state
From...
Consumer Rights Act 2015
www.legislation.gov.uk
Remember that to evaluate the damage due to the bathroom floor being sunken you needed to remove the carpet etc.