Welcome Jon,
And I've recently completed a similar re-registration process with an MD808 Pro, which is the successor of the MOT Pro I believe.
This interface was given to me previously registered and the last owner was able to release it from their own Autel ID, easy switch.
However, having done much research in this area and for your case, it maybe possible for the re-seller/agent to contact Autel directly.
As I've seen some licenced/authorised re-sellers/agents offering this as an option for traded-in/pre-loved interfaces in the past, do keep in mind this is solely at their discretion if even still available.