Better make sure you still have your receipt. I had bought the original version for the iphone 4 when they first came out. Then they came out with the flash fix and i received a replacement using a picture and the box that it came in as proof (the shipping info was on the box, but i no longer had a receipt).
Then just a few days ago i contacted speck to get another replacement because my second case was flaking horribly. i didn't have a receipt from the replacement (there was no receipt sent and didn't come in a box, just an envelope) so i emailed them back with this info but told them just to look me up in their system since i have only dealt with them directly.
I haven't received a response in 3 days probably meaning that they are not going to help me.
Moral of the story. Save every single receipt from every single purchase you ever make because without it the company has no desire to help.