@ShawnP0555 As Dunkman said, we definitely need a few more details. Are you a new customer switching from a different network? Did you purchase a sim? If you've subscribed to a plan, it will show something that says "finish your activation in the app...
Do you maybe have a different device that you can download the public mobile app on just so you can finish the activation? Then after activation perhaps you can just use the desktop version for checking your account.