If you have signed up for Facebook but did not receive the confirmation code necessary for you account validation, or if you have a Facebook confirmation code issue, there are a number of reasons that this could be happening. Below is a quick list of possible solutions that you can utilize to activate your account.
Many times, common internet errors such as the use of "www" in an email address, or even entering the incorrect email address may be the cause of the delay. If this is the case, Facebook provides a form for users to send in to fix the issue. Once submitted, Facebook will resend your code to the correct address.
You should also verify that you are attempting to log in with the exact email address that was provided at registration. Many times, users register with an incorrect email domain such as comcast.com as opposed to the correct comcast.net.
In some cases, your internet service provider may have blocked the confirmation email from hitting your inbox due to security precautions. Be sure to check all spam and junk folders in your mailbox before looking for alternate solutions.
It's also possible that network and frequency errors on the internet have caused the delay in your code's delivery.
If You Have Used Gmail
Check you email in the Social Network folder.
If You Have Created Your Account With Your Mobile Phone Number
If you created an account with your mobile phone number and didn't get an SMS with a confirmation code, try these steps.