AT&T Wirelesss
Have smart phone with unlimited data plan since 2009 & AT&T will not honor unlimited data plan with upgrade.internet
I have two smart phones with what I thought was unlimited data plans. AT&T no longer offers unlimited data plans. When I upgrade phones, I wanted to keep the unlimited data plans since I already have them on these two phones. AT&T says I only have one smart phone, not two. I have had both ...