You’re not receiving the verification code to gmail, yahoo or comcast – because we can’t send email to them, because the respective servers tell us there is no such email address there.
You actually have succeeded in registering a yahoo.com account though, using your correct email.
The other three (gmail, yahoo and comcast) are misspelled.
Here are some excerpts from our logs of the sending email, so you can see what we’re seeing:
SMTP error from remote mail server after end of data: host mta7.am0.yahoodns.net [188.8.131.52]: 554 delivery error: dd This user doesn’t have a yahoo.com account ([DELETED]@yahoo.com)  – mta4376.mail.bf1.yahoo.com
SMTP error from remote mail server after RCPT TO:<[DELETED]@gmail.com>: host gmail-smtp-in.l.google.com [184.108.40.206]: 550-5.1.1 The email account that you tried to reach does not exist. Please try\n550-5.1.1 double-checking the recipient’s email address for typos or\n550-5.1.1 unnecessary spaces. Learn more at\n550 5.1.1 https://support.google.com/mail/?p=NoSuchUser x90si5805431ljb.275 – gsmtp
SMTP error from remote mail server after RCPT TO:<[DELETED]@comcast.net>: host mx1.comcast.net [220.127.116.11]: 550 5.1.1 Not our Customer
So, in summary:
yahoo says: “This user doesn’t have a yahoo.com account ([DELETED]@yahoo.com)”.
gmail says: “The email account that you tried to reach does not exist.”.
comcast says: “Not our Customer”.
I am really trying to explain why you never get the verification code! It’s because neither of the three providers used accept the mistyped email address.
If you look carefully at what you’re typing, you’ll see that the yahoo one that works has the letters ‘l’ in position X, and ‘c’ in position X+1. The three ones that do not work, have these letters switched, so there’s a ‘c’ in position X and ‘l’ in position X+1.
Your real email address is thus ?????firstname.lastname@example.org (and possibly gmail.com and comcast.net as well).
The emails that don’t work are ????email@example.com, @comcast.net and @gmail.com .
(The number of question marks do not reflect the real number of characters).
Please try again, and be really careful to check that the typing is correct. It’s an easy mistake to make, but it is the problem here.