curl --request GET \
  --url https://intern.payingame.io/rest/PayIngame/PublicAPI/Receipts/{YourAPIKEY}/{CustomerID}

{
  "isError": "0",
  "Error": "",
  "Receipts": [
    {
      "Date": "2025-09-23 17:36:11",
      "Receipt": "https://url/receipt"
    }
  ]
}