You are ok they dont really look at the tickets and your ID you should be fine, when you get to the line just go as if nothing is wrong and yoh will be ok, i whent in with my daughters ticket yesterday, she whent in with my
Call universal staff and ask them would it be ok to use one for your kid even though it's under your name if they refuse just ask for a refund . Simple
Call universal studios to make the correction and see if they can send the new ones
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