EmailAsk for the details
Subject: Help us find your order
Hi customer.first_name,
Thanks for getting in touch. I was not able to pull up your order from this conversation yet, which usually means it was placed with a different email address or as a guest.
Could you send me:
1. Your order number. It starts with # and is in your order confirmation email.
2. The email address you used at checkout.
Once both match, I will have the details for you straight away.