Just purchased a ticket from united directly. I received an email that my reservation is processing but did not get a second email even after 24 hours. When I checked my reservation online, it said "This reservation was ticketed and confirmed." Also I can see my receipt with the eticket number on it. However, when I tried requesting for the receipt to be sent to several of my email accounts, it does not work and I received no emails from United. Is my booking confirmed as long as I can see my receipt online with my eticket number and confirmation code on it?