Q: How do I set up a cellular data account?

Here is for AT&T:

http://support.apple.com/kb/HT4157

Here is for Verizon:

http://support.apple.com/kb/HT4571

Did this solve your problem? Please indicate helped or solved, or let me know if you're still needing assistance. Thank you.

I found your carrier: try this:

http://www.8ta.com/pages/plans/ipad/

It essentially says:

To take advantage of these amazing iPad Data plans, please visit your nearest iStore. Do not forget to bring your iPad, plus all the documents required for RICA, to the iStore.

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