I have all together 3 cats, 2 are my own and 1 is a foster. All 3 cats are not using a brand new cat tree that I purchased to scratch, they also will not use other scratch advises available at the pet store. The scratch the carpet everywhere whenever they feel like it and it will ruin the carpet in my appartment eventually, which I am going to be responsable for. I need to figure out how to stop them from doing it? Any advise would be appreciated, I am at a loss now.......