Simrat in Milton

I purchased this sectional sofa only two years ago, and it's mainly used by my husband and me. However, suddenly, the foam has sunk more than four inches in one corner of the sectional. We also invested in a protection plan when buying the sofa. Surprisingly, both Mobilia and the protection plan provider claim that this kind of foam sinking is not covered and consider it normal wear and tear. I fail to understand how such drastic issue can be classified as normal wear and tear. I made a significant investment in this sofa, and now I regret it, as this is the second repair within two years