So I've created 4 Amazon accounts all using different emails, and no matter what I do, I can't sign in to any of them. They all give the response "Your login can only be used with the Amazon shopping app or Amazon Prime Video app." I looked for answers everywhere, and I tried contacting customer support only to come to the realization that I CANT CONTACT THEM BECAUSE I CANT SIGN IN. There's no public customer support email to contact. If anyone has any solutions please tell me.

Can't sign in, can't use my account for anything, can't contact support