I bought a zmax on sept. 14 2012 about 3 months ago. with the understanding that it came with a 6 month warranty. well the center post at the top where you would thread your vivi nova in (or whatever you would use) snapped off and the positive wire came off as well. Now I cant even get the store to call me back and I am just wondering how or who i need to get a hold of for a warranty claim.I have left a email and a voicemail with no response or call back. I paid $120 for this and it only lasted me 3 months, not very happy.