My son bought without concent
What do I do when my kid bought stuff
Question marked as
If your iPad was used by somebody else, such as your Son, insofar as Apple is concerned the product purchase will have been made by yourself.
That said, in some circumstances (such as software accidentally purchased from the Apple App Store), Apple will reverse the purchase and apply a refund to the purchase method used. Refund is entirely at Apple’s discretion.
Request a refund for apps or content that you bought from Apple - Apple Support