Thanks for you kind reply. It was ignorant of me not to value your time. FYI, for those that care... We are auto renewed a day early, so At&T made the decision for me:
Congratulations, your auto-renew of Unlimited data for 30 days for $29.99 was successful.
Your credit/debit card has been charged $29.99.
Reminder: Domestic iPad Plans may be purchased with unlimited data usage, or with a data usage allotment measured in MBs, for a 30 day period utilizing a credit or debit card. The 30 day period begins to expire immediately upon purchase, whether or not you are using the service. Domestic iPad Plans will automatically renew every 30 days, and you authorize us to charge your credit or debit card for your initial and any subsequent iPad Plan, unless you cancel service. To cancel service, visit Settings from your iPad at least one day prior to your next scheduled payment to avoid your next auto-renew charge. If you purchase a Domestic iPad Plan with a data usage allotment and you use all of your allotment prior to the expiration of the 30 day period, your access to our Data Services will cease for the remainder of the 30 day period. If you want to continue using our Data Services during the remaining 30 day period, you will need to purchase an additional iPad Plan by visiting Settings from your iPad. Domestic iPad Plans include the U.S., Puerto Rico, and the US Virgin Islands.
Thank You,
AT&T