I have had my share of errors getting tickets to be correct also.
It's a common error people enquire about. I wouldn't be too bothered by it.
I recommend calling the museum to clarify. I do not imagine it would be an issue unless there is a high volume of patrons.
Tickets for an expo, or just general admission?
My tickets also had an incorrect time....not sure exactly what that means. Sorry I could t help more.
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