Need to combine Adobe Sign with Adobe Business account

We have 2 different Adobe contracts in my company.  An existing Business account that stores our Acrobat and other licenses, and a new one for Adobe Sign only.  Our reseller set them up separately, as the original Business account expires soon, so they created a new one for Sign, with the intent that when we renew, all the Acrobat licenses would move over to the new Sign account.  I don't know if that was the correct solution or not, as my users cannot use Sign now, since it is set up with the same email as Acrobat. 

When I log into Adobe Sign Admin, I do get an option to pick a "Profile", but I seem to end up in a loop when I try to log into the actual Sign app - it goes back to the original Acrobat sign-in, and Sign is unavailable in that account.

Is there a way - other than access Acrobat with one email and Sign with another - to combine the two accounts/identities/profiles so that one login can access both contracts and products?  Here is the error I get when trying to use Sign - it is the same email address as I use for Acrobat, but again - they are completely separate accounts/contracts:

I am in admin in both accounts, but I cannot seem to get past this problem.

Thank you -