So from everything I had read online, I should be able to use Verizon Messages app on my devices. I have it on my main phone which is a Z fold 4. I have an unlocked Pixel 6a I got from Target. I connect to wifi and when I put my number into the app to "activate" my account for the app on that phone, it doesn't log me in. I don't have a sim card on the device because I am just going to be using it on Wi-Fi.... so why wont it let me use the messages app on the Pixel???