My I phone stopped working today and my carrier for 20 years ATT has said it was black listed by Verizon. I purchased this phone new from Apple in 2022 and had it activated by ATT . Tell me how a company I have never had a account with black listed my phone? ATT said its Verizons problem, Verizon says since I dont have an account with them its Apple problem. Apple says its in ATT problem. You would think Verizon could help since it was them who black listed it.