Stopping Spam from the form on front page

I am receiving spam from the index.php even though I have used the custom CSS to not display the Contact wrapper on the front page. Also in the Contact section of the theme settings I've filled in the Captcha information and have it turned on. Any suggestions?

 

Hello,

If you have enabled Google recaptcha then spamming is not possible.
Please contact to your service provider and find exact point of spamming.

Thanks & Regards
Nitesh Raghuwanshi