Unable to Activate Individual Adobe Acrobat Sign Subscription Due to Account/Profile Technical Issue

The issue is that I am unable to activate and use my Adobe Acrobat Sign subscription, even though the subscription is individual and not associated with any organization or enterprise account.

A message appears stating that there is an existing Adobe Acrobat Sign account linked to my email address and requesting contact with account administrators, despite the fact that this email is not currently nor previously associated with any organization, and there is no enterprise subscription linked to it. Accordingly, I believe this is a technical issue related to account management or profile conflicts within Adobe’s system, which is preventing activation of the individual subscription without a valid reason. Switching to the “null profile” does not resolve the issue, as it does not allow proper use of the paid subscription.

I would like clarification on why this message is appearing, identification of the underlying issue, and assistance in resolving it so that the individual subscription can be activated and used normally.

Is there a support representative available to assist with this issue? I need direct support to identify the cause of the problem and resolve it.