When is the next Lockerz redemption?

I was just wondering if anyone knew. And also, I was looking at PTZ Place today and I noticed how the url had "tier/1" in it, so I changes it to this "http://lockerz.com/redeem/tier/2" and a new list of four categories came up. Did anyone know about this or is this some sort of Lockerz secret that I just found out? Because whenever I go on PTZ Place there's nothing to take you to this new list, thats why I never knew about it.