SolvedZ8 games GP codes

HI yesterday I managed to get 3 Gp codes because after I got my first code I deleted all cookies etc. with cc cleaner, changed my IP and logged into a different account. I continued this till I had 3 codes.
Today I first logged into my main with my real IP and generated a code. After that I did the same thing like yestarday, but now it always says that I already voted. Whats wrong? I even updated my Ip hider. ;(

that happened to me too, I think you only can vote 1 time per computer