Want some cheese with your whine? If you needed your order shipped on a certain date, maybe you should have put such a big order in a little earlier. I think it's reasonable to suspect it might take a couple days to fill. And then you missed the return deadline. I'm not sure how that's their problem.
It took you 4 months to decide you didn't want to keep the item? Then complain about how long it took to get re-imbersed. That is on you.
As for the lack of consistancy of products thats what happens when you have your stuff made in china. The cheap generic stuff is made in china also, so usually you get what you pay for. You would expect much more for the price paid for Kuiu products.