I completed my 1st month of the $14.99 AT&T data plan. My sister had told me she received a pop up on renewal date providing an option to renew another month or cancel. I didn't. I received an email stating I have auto renewed. So per the email, I called AT&T to have the charge credited after I cancelled within the iPad settings. Does anyone receive the pop? Was my rep correct in saying that if I don't reinstate the plan within 60 days that I have to get a new sim card for my iPad?