IRS Letter 6475

If I filed married filing jointly in the past and will be doing the same this year, is there one Letter 6475 or two, one for me and one for my wife? I thought (most likely mistakenly) since we filed jointly, it would be one letter.

 

If it is two (one for myself and one for my wife) do I enter the TOTAL amount (my wife's amount added to my amount) on the program where it asked how much stimulus money I received for the 3rd stimulus?