Bough a £3300 sofa in June 2019 delivered sep 2019 beautiful sofa leather. One year later seat pads stretched and we both get numb bums sitting on it ( both of us under 9 stone) dh puts a cushion on top for comfort I sit on the floor. Done the recommended plumping after use ( I never did this once with my old sofa) Had my last sofa for 15 years did not have this problem, gave it to my mother who sill has it now, the problem is that sofa is better looking than my one year old sofa I would be lucky to get £50 on gumtree. Ringing up is a nightmare can't get through.