I am unable to send message. I've never received a verification code,so when i try to send message it keeps asking for verification code. Don't know where to look for it.

on the email that you used for this sight to sign up for it
check your junk mail or spam folder if you dont see it in your email folder

didnt get code
"For anybody that has checked their spam folder to no avail,
please send an email from your registered email address
to the following address:

m2.support@nextc.com

Give your message "verification" for its title."
~~~~~~~~~~~~~~~~~~~~~
So, you would go to whatever email you have listed here:
http://mingle2.com/inbox/mail_settings
and send an email to: m2.support@nextc.com
with "verification" as the subject.