hello，sir. I have a question. I got my phone card (my Plan 10¢ / Minute)and payed 20 dollars at Coralville at the beginning of Octomber . yestertoday I couldn't received my friend phone and message. I login in At&T and find my Account History was only 3.5 dollars. but my current balance
$0.00(Expired on Oct 28, 2014).I only surf the internet in lab and my house where have wireless of their own. I don't know why?
best wishs
my e-mail: [edited for privacy – please do not post personal information]