Hello @Rochelle1,
This is a Community Forum, where fellow Hosts help each other to resolve issues and share useful tips. Thus, Airbnb wouldn't be contacting you for the question that you have posted here.
Since you haven't received the email, I'd request you to check your Dashboard where all the confirmed reservations appear: https://www.airbnb.co.in/dashboard
If it isn't present here, the booking is not confirmed. Download the Airbnb App if you haven't already so that it's earier for you to track your inquires and bookings 🙂
Happy hosting
Jeet