When you send a support ticket you will receive an automatic reply with a ticket number. Once you've received that, it may take up to 48 hours for a response.
We don't "delete" accounts. Members that want to end (cancel) their Memberships please see How do I end my Membership? for assistance.
Once a family account is created and accounts are added to them we are unable to unlink the sub accounts or switch which account is the family master. So no, you can't switch from one family of accounts to another.