I am trying to change the plan on one of the phones on my account. I have used both the app and the Self Serve site, but keep getting an error message when I try to change the plan.
The Self Serve site just says "An error has occurred. Please refresh the page or try again later." and the app says "We're unable to process your request. PLease verify the information and try again."
I am able to reach the change plan options for the other phone on my account, but not the one I am trying to change. Why is this?