A 19 year-old college student, Jon Gales, recently discovered a low-tech "hack" for Pepsi's free iTunes music giveaway.
Simply tilting the bottle to look underneath the cap, if you see the word "again", it's not a winner, look at purchasing yourself a different bottle.
Not suprisingly, Pepsi's comment was "people usually play by the rules", and "we always put redemption limits to prevent this type of thing".
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