Yesterday I was playing a game and a pop-up appeared for a pack with usefull things for the game and I accidentally touch the purchase button without knowing and while it was connecting to the iTunes Store

Hi, I have a problem... Yesterday I was playing a game and a pop-up appeared for a pack with usefull things for the game and I accidentally touch the purchase button without knowing and while it was connecting to the App store for the purchase, I thought it was just a bug in the game so I put my finger on my home button and I have the Touch ID on for the purchases... so without wanting to, I purchased something in my app, but never wanted to... How can I get a refund or just stop the « subscription »... because I honestly don’t know what I bought and the information does not appear in my purchase history...

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