iPad AT&T help

[05SRT4GR]

Ok, I'm gonna try and make this as short as possible...I received my iPad for my graduation about 5 and a half months ago, right before AT&T ended it's unlimited plans. I had read that they were going to be going to the limited plans soon so I quickly paid for the $30 a month plan to be grandfathered in. Fast forward to the middle of November and I had misplaced my credit card, and it ended up getting put in the wrong persons hands causing me to cancel it and get a new one. I was so caught up in updating a bunch of billing information that I forgot to update the one on my iPad. I received an email stating that they attempted to renew my unlimited plan and were unsuccessful because the card number was different. And the it says "please RESELECT a plan and update your billing information". My question is, is there any way I can get my plan back? This wouldn't be a big deal but I'm out of town a lot and use 2 gigs or more a month. I tried calling AT&T but there billing department is closed for the night so I'm going to try again tomorrow.

 

[05SRT4GR]

Nevermind, I got this resolved. Talked on the phone with a lady from AT&T and she said that there is a "7 day window for things like this" and if I act within those 7 days with someone from AT&T I could retrieve my data plan. So I got it all setup again on unlimited and even got this month free because she said it was an inconvenience for me