Requesting a refund for in game purchase

Hello everyone,

I hope you all doing well. My problem is that my little brother for month and a half used to buy in game packs for MU ORIGIN 3 that costs around 400$. We are living with our grandparents and our parents send us money every month through bank card for rent, bills and etc. He is fourteen years old and spend soo much money for a game. I am looking how to get full refund. Already did request refund from report a problem. But the weird thing is that I requested 25 refunds. After explaining the situation to Apple they refund me only one purchase. I just don’t see whats the difference between them and why they approve only one. I don’t know how to contact with them. I hope someone can help me about this issue.

Best Regards,

Miroslav Vasilev