I am having issues with using FaceTime as well. When I go to Settings, it says, "waiting for activation." When I go to make a call while on WiFi to someone with FT, it says, "activating" and isn't lit up to allow me to click it while on the call.
I called two people at Verizon...they are clueless. Told me to try and reconnect with iTunes, blah blah blah. I tried to restore, nothing.
I also have no Verizon in the top left corner.
I mean, I'm not pissed that FT is broke, but I'm pissed that nobody at Verizon seems to be giving a **** to help those in need out.
Call Apple. Or go to an Apple Store (with an appointment).
FaceTime has nothing to do with Verizon.
It's (almost) like calling Verizon if you can't pass a level on Angry Birds.