For those that ordered their iPads before the June 7th unlimited data plan cut-off and no unlimited data activation option is showing once you received it after June 7th, AT&T has a special support center to address this issue. BE PREPARED TO WAIT ON THE PHONE FOREVER. 1-866-640-5125 Just tell them that you ordered the iPad before the cutoff but just received because of backorder. They will tell you to activate it for either plan and give them the cellular data number in settings. They then cancel the plan you signed up for and move you to the unlimited plan. Then the confirmation is sent to you and you can verify everything right on the iPad. Make sure you tell them to set it as auto-renew. BE PREPARED TO WAIT ON THE PHONE A LONG TIME. I waited 2 1/2 hours last night before I just hung up and then 2 hours first thing this morning before I got through.