This Apple ID has not yet been used in the iTunes store. Tap Review to sign in, then review your account information.

In an endless loop with the App Store on an iPad:

When pressing "Get", a Modal box says:

"This Apple ID has not yet been used in the iTunes Store. Tap Review to sign in, then review your account information."

I can not figure out how to get the TestFlight app from the App Store.

Everything seems perfectly set up and logged into my AppleID

Tapping "Review" just repeats a Modal alert (inside a share sheet!) "Sign In Required" with an incorrect description: "Please enter your AppleID and password to create an iTunes Store account from your existing Apple ID" (but the Modal alert only have one field for the password -- no field to enter the AppleID.)

I AM signed in!! Doesn't matter, keeps asking for password over and over.

PS -- Does Apple pay anyone to test their apps before putting them out to the public?