Captcha unsolveable

Dear Blizzard,

i tried for over an hour to create a new battlenet account. After choosing the account name I have to verify, that I am a human and have to solve your captcha. I lost count how many times I have tried, but every time your system tells me that I did it wrong. I even made screenshots to prove that I solved it corretly. Is there any particular reason, that you do not want new players?