plan is for 15GB plans and higher. You wrote you went from 10GB to 20GB, I called twice, they wont do 10GB to 20GB, they wanted to upsell me to 15GB.....
If you never had to eat crow then you lived one boring life.
I called twice as well and they told me there was nothing they could do.
Worked for me, thank you!
Strange.... I didn't think it was a YMMV. Here what I did...I called 1-800-331-0500 (Or 611 from your mobile phone), Pressed 0, and then pressed 3 for Cancellation. Just told them a friend had recently had their data doubled from 10 to 20 GB for no additional charge and wondered if they could do the same for my account. No argument, they just did it. It took longer for them to ask the survey questions at the end about would I refer a friend to AT&T than to upgrade my data!