Poor customer service

I bought the Grand Legacy king size mattress from White Dove from Levins furniture. Had I known that their warranty came from White Dove and not backed by Levins, I would have never bought this mattress and spent over $2,000 on it. I have a spinal cord and rib injury so finding a comfortable mattress to sleep on is extremely challenging. When I first got the White Dove mattress, I really liked it and was able to sleep decently. Then after year 5, it started sagging and becoming very uncomfortable to sleep on. Finally, I had to call about the warranty on the mattress. This is when my personal hell begun. Levins informs me that I need to go thru white dove so I call them. They send me out this packet to measure the divot myself and to take apart my mattress, box spring and frames for pictures (now let’s all remember my spinal cord injury). So after getting some help, I finally get all the pictures they require and sent my information into them. And wait…and wait…after 2 weeks, I email asking for an update. They respond with guess what…we need more pictures. So now I have to go thru all of this again. I send them the additional pics and once again have to wait. Finally I get an email saying they are going to replace the mattress but I have 2 choices. 1 - drive 4 hours roundtrip to Cleveland to pick up the mattress or 2 - pay $100 for it to be delivered. I chose to pay the $100 as my spinal cord injury doesn’t allow me to drive 4 hours. So I get an email regarding delivery and I am finally happy until the mattress shows up. It is delivered by fedex in a box. Umm ok?? This can’t be right. The mattress I purchased had inner springs and memory foam combined because I need the additional support of the coils for my back. Well this new one certainly did not have any coils. It was a complete tempurpedic mattress. This mattress was nothing like the one I purchased previously but yet I still set it up and tried it out. IT WAS ABSOLUTELY HORRIBLE. I wasn’t even able to sleep one night on it. It made my pain unbearable