A have been unable to get 4g or LTE signal for the last couple of months in LA. I went to the verizon store at beverly center and after changing the simcards and rebooting both my phones, the attendant told me to go to the apple store. At the apple store I had a full diagnosis test run on both devices and no problem was found, I was then told to call verizon support. I called Verizon support and was told that the problem would be "investigated" and that I should expect an answer in 72 hours. My devices are two iphones, 7 and X. I am considering switching carriers since I have been paying for a service that is not being provided.