We have a 2014 Allegro RED that after a year of really light use has seen a major failure of the seat covering material. The official warranty is one year and I didn’t realize the magnitude of the problem until after a year was up. Tiffin to there credit has sent me new upholstery but seems to want me to be responsible for paying someone to install it. I can’t, it will take an expert. Has anyone else had this experience and worked out with Tiffin to pay for the labor to replace the upholstery?