MY.GAMES Market
You are welcome to reach out to us through the MY.GAMES Market support section. Please attach screenshots of your purchase history on the Market website showcasing the order IDs in question. If one or all your purchases haven't been assigned with an order ID, submit receipts that have been sent to you by the bank or payment system you were using while making those purchases.

In-App-Purchase through an Application Store (Google Play, App Store)
If there is an issue with a purchase you have made or are planning to make in the game, please launch the game on your device and contact us through the following method: Settings → Support.