AT&T offers $100 credit for adding a new line "http://cnet1.cbsistatic.com/hub/i/r/2013/10/31/01625982-a5ca-11e3-a24e-d4ae52e62bcc/resize/370xauto/af1e7121c0c7e7a1244cb62808dedc45/att_610x442.png" class Email ThisBlogThis!Share to TwitterShare to Facebook