$540 via promo credit when you add a new smartphone line with your own 4G/5G smartphone on postpaid Unlimited Plus plan between 5/18/23 - 5/31/23 & port-in req'd. Promo credit applied over 36 months; promo credits end if eligibility requirements are no longer met.
I have an iPhone 7 Plus. When I try to make calls my phone says "Failed Call". When someone calls my phone they get a busy signal. I've been through all of the steps to troubleshoot this problem and nothing has worked.