Not able to sign in after changing email address in free account

I have a free account with Adobe and recently started using Adobe sign with dropbox. After realizing the documents that I was sending for the signing were generated from the email address that I had in a free account and not the one that I needed I changed that email to the right one. After that, I am not able to access the dashboard that I had before the change where I could see the status of the documents and all. What should I do to retrieve all the information that I had originally? Step by step instructions are appreciated.

Error reads: Unable to access your Adobe Sign account. Please contact your account administrator or try later.

Request ID ................................