It costs a lot of money to keep replacing the same phone over and over again. Therefore, Verizon has policies in place to address recurring issues such as yours. If you take the phone back to a corporate store, they should be able to exchange your phone with a new phone, because you have already been through 3 phones. Verizon doesn't want to lose you as a customer, so they are not going to let you out of the contract, it makes more sense to get you a new phone that works.