I bought an iPhone case from Zazzle, made by Speck. It is a two piece case where the plastic ring snaps onto the back and locks it into place. The plastic ring cracked and is unusable now. I contacted Zazzle and they said they couldn't help me. Does anyone know of a cheap Speck case that would use the same two piece design that I could buy so that I can keep using the case I already have? I've attached a picture of my case and the plastic piece that is broken.