If 3 chargers don't charge your phone, I would think the problem may actually be with your phone!
If you take the cable and plug into a usb port on a pc and then to your phone, does it charge then?
The battery is removable, so, you could get by with an external charger and an extra battery, but, as new as it is, I would take it to Verizon and let them tell you what was up. Perhaps it would be a warranty fix?