Hi just got a brand new iPhone Xs....love it except I inadvertently turned on VZW Integrated Messaging, and I can't send photos to Android users, and I can get ANY cross-platform group texts at all. and now I can't turn it off. I don't have the app options the VZW guides say...i've spoken to VZW customer care multiple times....they're now saying it's an Apple issue???? Anyone run into this??