It's far enough in advance, you should not have a problem. Tell the truth, be apologetic, and if the customer service rep doesn't have authority to do something, ask to speak to a supervisor or someone with authority. Pending the situation, you just may need to get through red tape to get a 'yes' or 'no' from someone who is authorized to say so.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle