These are all the emails I have from Prey with this account. You'll see that my device was added 9/8/2018. If I deleted that account I would have received a confirmation email right?
Here's where it gets tricky, after realising I wasn't getting any customer support I revoked the admin access and uninstalled the app. I reinstalled and tried to add this device to my other Prey account (which I have access to) but it won't let me. It says "error invalid credentials".