Fix Rise of Kingdoms Negative Gem Balance and Missing Refunds

I want to share a refund issue I am experiencing regarding a gem purchase made through Google Play in the game Rise of Kingdoms. I purchased a discounted gem package in the game, but when I bought the same package again, the discount was not applied this time, and I was charged the wrong price. Because I made the second purchase by accident, I requested a quick cancellation and refund.

I have been trying to resolve this issue for about a day. Although the transaction was canceled, my money has not been refunded to my account, and my game account now shows a negative balance of -1890 gems. In short, my money was not refunded and I have negative gems, which prevents me from playing the game normally.

My in-game username is M******* 571, and my account ID is 232421778. I demand a refund for the accidental second purchase and that my in-game gem balance be restored to normal. I request an investigation into this bugged transaction where the discount failed to apply, and I expect this grievance to be resolved.