I made a payment on golf clash (0.99) and have not received my coins or gems for the game

You are not speaking to Apple, this is a user to user community. 

We are unable to help with refunds, account issues or purchases  

Cancel/see your subscriptions here - See or cancel your subscriptions - Apple Support 

Try applying for a refund here, but there is no guarantee it will be refunded - Request a refund for apps or content that you bought from Apple – Apple Support

Or Contact Apple Support - Contact - Official Apple Support

you need to speak to the app developers

I made two purchases in Golf Clash on 9/30/20 approx 5:15 pm EST. One was for $1.99 and the second was for $4.99. Neither loaded to my account. What can I do?