Remove previous ownership

Hi, the core I am using is the one I rent from my university. Someone used it, but did not unclaimed it. There is no way i could find out who is the previous user. What should I do so I can transfer the ownership to me?

When trying to claim ownership trough the web IDE, or the CLI, it will prompt you to sent the original owner an email to request a transfer of ownership.

In addition a border question to Moors7: would it be possible to generate over the (known) Device ID with particle keys new Keys and so also without intervention of the owner to claim the Photon?