Can't Sign Into Account After Updating Adobe ID

I signed up for a trial account on Friday with Document Cloud/Adobe Sign for buisness last Friday. I spent a few hours digitizing all of my documents and sent two of them for signature. This morning I came into work and attempted to change my account email address and now am unable to sign into my account.

When trying to sign in to: https://secure.echosign.com/public/login as soon as I type my ID in and then attempt to type my password the page immediately redirects to a personal adobe account login page thats diferent from the echosign login page as if the ID is still linked to a personal adobe account. If I attempt to sign in on this page it says:

We have encountered an issue due to possible Adobe Id change. Please contact your IT administrator or Adobe support.

and this page looks like the echosign login page.

I have chatted with support and then called support to have them tell me that theyre unable to locate my subscription after providing email addresses, phone numbers, credit card details, etc. I need this account back, I spent a lot of time digitizing the documents and have sent a few for signature that I need access to. I am on the edge considering this issue on whether or not to use this product. I can't have issues like this arrise simply because I changed an email address.

The above email was linked previously to an adobe sign account, but was removed and then added to the business account using the steps provided in your online self help articles.

I have seen this issue occur with multiple accounts on the form and seems to be a long occuring issue that has not been resolved. 

I need this resoved as quickly as possible as these documents are time sensitive.