Arknights in game purchase not received after payment verification
So this has happened to me many times, and before when it happened apple has always offered a refund. This time it happened again but with a larger sum of money, and apple refused the refund. This is what happened:
I make in game purchases occasionally, about once a month. Whenever I make the purchase after a long time of no purchases, in app purchase redirects to the App Store to verify my payment method. After verification, App Store would say purchase successful and redirects to the game, which would then get stuck on loading verification from App Store. This loading process lasts very long (20min+), so I have to quit game and reopen, at which it would say purchase not completed and I wouldn't receive the in game purchase. The end result is my card would get charged the amount and not receive the in game purchase.
This has happened 3 times already, the first 2 times transaction amount is small so apple refunded, this third time the amount is moderate and apple refused the refund. What I purchased is a monthly pack, which is only available for purchase once a month, but within the same day I payed for it twice (first time in game purchase not given, second time there is no verification so transaction happens as normal and I receive the in game purchase). This should be sufficient proof that I did not receive the in game purchase right?
I have requested the fund and review, both of which judged the refund ineligible. I am wondering what can I do to get my refund?