I enabled it for our trip to Jamaica this past fall. Intent was to not turn the phone on, but have it "just in case"... Well, the best plans.... On the last day, the resort decided to finalize out bill by manually entering our CC numbers off the deposit receipt. Needless to say, it caused a lock-down of the card. Well, now its time to use the phone to contact the bank...
Start up the phone, and surprise..... no signal. Give up and power it down, and, just as its going off, it manages to grab a weak signal. So, how does it work? Well, their billing does. I got hit for the 24 hour charge. I called Verizon as soon as I got home, explaining what transpired. The use had not shown up yet. They said they would flag my account, and not charge me. Needless to say, the next billing cycle, I was charged......
So, how does it work? Depends on the cell service, but the billing sure seems to work......
One of the "tricky" things I now have to deal with is you have to call them to disable it. I live along the US/Canada border, and the Canadian cellular is less regulated there compared to the US. Their signal blows over ours, and I can end up on Bell Mobile and face charges that are simply ridiculously high....
I wish there was a control panel "switch" on the Verizon system to enable/disable it.....