How does someone dispute an in-app purchase?

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For assistance with billing questions or other order inquiries, please refer to our online support page by clicking here: http://www.apple.com/support/itunes/store/. If you cannot find the answers you are seeking in our robust knowledge base, you can contact us by visiting the following URL http://www.apple.com/support/itunes/store/, clicking on the appropriate Customer Service topic, then using the contact button or email form at the bottom of the page. Responses to emails will be provided as soon as possible.

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 Cheers, Tom 😉

I need to dispute a purchase that was mistakenly made...How do I do it