Account ID for Adobe Sign reactivation

Hi all, earlier today i supported a new colleague in my company to set his Account ID to manage documents signatures with my company Adobe Sign (Enterprise profile). Unfortunately, once set, the screen he saw was different from the one the other colleagues got, so we thought something went wrong and tried to cancel his account to reset it from zero. Done this, he is not able to retry an account activation. He already clicked on the link within the message received when deletion was confirmed, to keep his account open.
However, is there another way to reset an Account ID to retry an activation from zero? Thank you.