Hello, Eric.
Welcome to the Microsoft’s Community. Your inquiries will always be well received.
We understand that you are unable to access your old certification account.
In this case, to have access to your account we recommend you to use the following option: Recover your account
In there you will be able to access your account with your Email, phone, or Skype name.
If the issue persists, please provide us with the information requested through the Private Message to check deeper on your case.
To use the Private Message Feature please look at the right side of the page and click the icon seen in the image below:

We look forward to hearing from you again. Please keep in mind, if no response is received, we will close the case in the next two business days.
Have a great day,