Thank you! I just tried those steps, but I still get that message on step 6 of 6 on the app when I login. The sim is showing on my settings as public mobile though.
No I haven't tried it on another phone. It is a pixel 8. When I did the assisted set up on the app at the final set up after I entered in all the info and transferring my number it said there was an error and to contact support.