I went to add the free $25 calling card I received when I bought a Nokia phone from Amazon.com and signed up for AT&T pre-paid wireless and AT&T would only extend my new time for 45 days (vs. 90 days as originally outlined in their offer). I called customer service and explained to them that it is listed right on the card that new time is good for 90 days. They not only extended my time, but gave me a 10% bonus as well.