Why Can't I Get Internet Without Wifi Being Connected

Make sure your phone plan includes a data plan, firstly. If it does, then try to remove your battery for a couple minutes, replace, and reboot and try again. If you still can't get online using 3G data (make sure that data is enabled), then you'll want to contact customer service to help set up your data connection properly because that will likely mean the problem is on their end and they will need to turn it on for you. You can call them at 800-901-6266 and press 1 when prompted.