It always "automatically" charged each month, I always had to cancel my count before coming back into Canada.
Last time I used a Visa gift card was Feb 2011, still worked.
Didn't the address have to match the billing address of the VISA? Did you just use any US address for it to work. I'll try that today. Thanks
If you use a Visa gift card, it does not do an adress lookup. I just used the hotel address
It does however do a name lookup, so when you register the gift card online, make sure you type your name the same way you'll type it in the AT&T registration.
First time I tried to sign up It failed because I had not registered the gift card online prior to using it.
I've used this process three times in twelve months, when going to the US.