You'll need to contact us to get this sorted out. Explain that you no longer have access to the email of the original account, and that you've created a new one. We can then verify that you're the owner of both, and merge, which basically just copies your new (working) credentials to the other account, allowing you to login again. You can then remove any defunct login credentials.
Be sure you include:
- Link to your profile On Stack Overflow of your old account
- Link to your profile On Stack Overflow of the new account
- Tell us everything about the old account that you can which isn't public information. Tell us what the email was, how you logged in, IP addresses that might have been used, your First / Last name, month and day of birth if you provided that in your profile section - anything we can use to make sure you're you.
Then wait for a reply. I see you noted that you did contact us, but if you haven't provided all of the information we'd need - then you might want to fill out the form again to avoid delays.
After that, wait about 24 hours (longer if a weekend) and we'll have it sorted.