Notice 1444 is an Economic Impact Payment notice provides information like

Amount of the Payment Received

How the Payment was made

How to report any payment that was not received

This notice will reach you through mail to the address provided in your Income Tax Return within 15-days once the payments has hit the bank.

Note: Especially people who does not get the payment as shown in the notice must keep it safe. When these people file Income Tax Return for TY2020 can claim additional credits if they eligible for them.