You shouldn't be mad at Verizon over a software update because A) they can't roll back your phone even if they wanted too, and B) aren't going to return a phone that is technically working. 600gb is the kind of use that is meant for land line based services. Sorry but people like you using 600GB a month is why they got rid of it in the first place. Yes, I understand they gave it to you to begin with, but that was because they were trying to get people into smartphones, now everyone has smartphones so they have to make sure that the network runs smooth. If everyone had unlimited, and was using that much data, their data speeds would suffer even more than they already do. That is the sad truth.