Deleting a second Garmin account

Hi, I have two Garmin accounts under two separate email addresses. I want to delete the most recent Garmin account I created and retain the old Garmin account that I have had for many years. How do I delete the new account without it affecting the old account as I would hate to delete both accounts accidentally. Is it as simple as logging in to GC under the new email address and selecting "delete account"? Will this only delete the new GC account and leave the old GC account in place? Need to know this urgently. Thanks