It's not reasonable for a laptop only to have a life of 14 months. I would contact Sony again but reading through the whatlaptop forum, they don't appear to be easy to deal with. Have you asked Dixons if they can do anything even if out of warranty?
Microsoft Surface Book 2 15in review
Illustrator Amy Grimes on how setting up her own eco-brand led to success with clients too
MacBook Pro keyboard issues and other problems
Test : l’enceinte connectée HomePod d’Apple