I had 2 dead ones to send back and they told me they were going to send one out to me with a return envelope and I had to send the other one in myself??? And not to send them together. WTF???
Then after not getting it a few days later when they told me I would get it, I called and they told me they were out of stock and it would be a few weeks.
They are trying, but I dont think they have a system designed for this much return volume.