Hi,
I'm very sorry to hear about the trouble with your order. I wish I could assist you immediately, but because Apple manages payments and refund requests, I’m directing you to the iTunes store.
You can report problems to Apple for orders made within the last 90 days. To do so, please
follow this link.
To make sure you avoid any unintentional purchases in the future, please check
Apple's guide on how to restrict in-app purchases.
Have a good one!