Hey I got my Z-560's online and I dont have the reciept. My sub and my back right speaker died and Im trying to RMA them. They need a proof of purchase but I dont have it so I was wondering if anyone had one that I could show cuz I did buy these and I should be honored the warrenty for it but they just dont understand. Ive tried to explain to them but they have to follow the rules cuz they could get fired and Im SOL. Thanks guys!