Same problem here. Please respond to this. My 2TB system (which was activated and working) now wants to be activated again. Doing so fails as I get the email saying only 1TB can be activated now.
We will need the email that was sent to you from the registration. Next week we will have procedure for this issue to recreate information on pen-drive. Send email to support@open-e.com with the information that was sent to you.