I bought a new phone and transferred my existing phone number and service to this new device. Everything transferred successfully.
I attempted to reactivate my old phone - so that I could give it to my mom - but it appears to still be attached to my phone number and says "Our records show that the SIM card number entered no longer can be used".
How can I successfully bypass the error message and reactivate the old phone with a new phone number (ported from another device)?
End goal:
New phone - already successfully activated
Old phone - reactivated with a new number