Disable WooCommerce Mail Notification – HELP?

Hello.

I have an WP website with WooCommerce integration. I want to totally disable the mails the customers receive when they place an order ( "Hi ,Your order #25531 has been received! – Thank you for your order. We appreciate your business!" ).

I tried using different plug-ings and even to disable all mail notifications but this one seems to be automatically generated. Any help for this?