Huntsman Elite Volume wheel problem

Is there anyone having problems with their Huntsman Elite Volume wheel control? Mine is malfunctioning big time. When I want it to go volume up, it goes down and sometimes the volume level numbers are going up and down but when I stop scrolling it, the volumes didn't change at all. I had this keyboard for a year now, at first my main issue was the metal frame for the wrist pad gives small amount of electric shocks. When I asked the store where I bought it if they can replace it, they said I just need to update the firmware. This is my 3rd keyboard from Razer and the most expensive one and so far all it gives me is headache and disappointments.