Zero Turn Mowers

I bought a new RZ5424 about 2 years ago, that now has about 56 hours it and I have a number of issues with it to date. #1 one rear tire developed a seperation and blew up during the night, in my garage. You replaced it under warranty because it only had 6 hours on it.#2 a pulley came loose and cut into the deck frame causing the deck to be welded, for a warranty repair, which no one would respond from Husqvarna. Now both front tires have developed small bubbles on them, which will eventually blow, and I only have about 56 hours on it.Also every time the mower has to be repaired , it cost me $50 for transporting it. I would please like to be contacted about this mower, to come to a resolution if I have bought a lemon or not. Also, while looking at it from behind, I have also noticed that the rear axles have started to bend upward causing the rear tires to wear on the inside edges. I only have 1.3 acres and it is all finish graded, so I know I'm not bouncing this mower too much causing this condition. I purchased the mower from Nationwide Farm Supply in New Castle Kentucky, and hate to bother the salesman again, over this mower. My cell number is 502-647-2723, and can be reached any evening after 5pm EST. Thank you