Apple Denial of charge on Bill

I have an issue with two of three charges from a King game I was playing to continue playing the game. I tried to purchase and it didn’t work and said no money was taken from my account, so tried again and got the same message. So I tried a third time and it finally worked. A day later, I get an email from Apple and all three charges appeared. I tried online to have them review it and credit me back for the two purchases that did not go through and they denied it. I tried again and they Denied it again. It’s almost fruitless to call and actually get someone to answer. Any suggestions.