That means you haven’t disconnected the device from the Account. Your module is still connected to the email ID.
First off it needs to be unlinked from the account, then you can go ahead and start conencting from a new account.
You can mail regarding the same from the linked email ID to my email, or post(using that email ID) it on this thread, mentioning that you want your device to be unlinked(along with the email ID).
You should have mentioned that you haven’t unlinked the device from the account. Device sharing publicly, only allows you to view the product the device is using. And only the particular link Bolt Cloud is used to access the product the device is using.
Let me know if you have any other queries.