I bought the same one and it was trash. It comes apart way too easily, I used it one day and when I took it out of my pocket the case fell apart.. that was the last I used it.I bought that clear acrylic case at the AT&T store and it was junk and kept falling apart. I dropped my phone on the road because of this stupid contraption, or should I say "Cheap" . I barely brushed the case or phone with my arm swing during a walk across a busy street and it came apart and the thing fell to the ground, the clip was down inside my waistband of my pants.
When I bought it I wanted to open it right in the store and use it right away as we were on our way to go car shopping. So the lady at the store opened it up for me and she had trouble getting the two pieces to snap closed good and tight. I did not try it out till we got to our destination and then put it on my pants.
I noticed in the store that if you hold it wrong or squeeze the sides too much or something, it comes apart easily.