Security check not working

Ive tried the security code at least 30, and i know i'm putting it in right, but no matter how many times i try it keeps saying i'm putting it in wrong. i don't get why? -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.