I have a Neo Hybrid and a Neo Hybrid Metal, of which neither worked very well. I received their email about the pieces, but I didn't want to wait for those to take their time to come in, not did I want to pay for an overprices crap case locally.
I decided to make a quick trip to target and purchase some craft foam pieces for cheap, which for me came in the same of alphabet letters like these:
All you need to do is to cut 2 straight pieces, one long one short, to fit over both the volume buttons and the power button and stick them onto the inside case. The case now works perfect. This is essentially what they are sending us, but instead of waiting days/weeks, you get a functions case now for cheap.