Maybe it was different for you because you had a pre-acquisiton Comixology account? For me (did not get into Comixology until after Amazon bought it but kept t

Maybe it was different for you because you had a pre-acquisiton Comixology account? For me (did not get into Comixology until after Amazon bought it but kept the apps separate), I could always buy through the Comix app, but it was in effect signing into my Amazon account whenever it wanted to make a purchase.