A missing confirmation email is common and usually fixable. Do not order a second time.
Look in spam and other folders, and search for the brand name. Check that you typed your email correctly. Allow time for delay. Then check your card statement or banking app: a charge confirms the order exists.
Contact the official seller with the charge details, date and name on the order, and ask them to resend the confirmation. Keep your messages. Our guide on what to save from the confirmation email explains why it matters for the guarantee.