Joel, I am hoping that they can get your old chair back to you or even a NEW chair that will at least be comfortable. When someone is in one chair for all of their waking hours they should be able to have one that fits, is comfortable and has the features that you need. Take care and let them know that you are not satisfied, it is not about what you want it is about what you need.
You can rant anytime but I wish none of us had to.