diff --git a/README.md b/README.md
index 992ee9e..121119f 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ async fn main() {
     
     let client = AppStoreServerApiClient::new(encoded_key, key_id, issuer_id, bundle_id, environment);
     match client.request_test_notification().await {
-        Ok(res) => {
+        Ok(response) => {
             println!("{}", response.test_notification_token);
         }
         Err(err) => {
diff --git a/src/api_client.rs b/src/api_client.rs
index 2d3c59d..054da4e 100644
--- a/src/api_client.rs
+++ b/src/api_client.rs
@@ -25,10 +25,10 @@ use crate::primitives::transaction_info_response::TransactionInfoResponse;
 
 #[derive(Debug, Serialize, Deserialize)]
 pub struct APIException {
-    http_status_code: u16,
-    api_error: Option<APIError>,
-    raw_api_error: Option<i64>,
-    error_message: Option<String>,
+    pub http_status_code: u16,
+    pub api_error: Option<APIError>,
+    pub raw_api_error: Option<i64>,
+    pub error_message: Option<String>,
 }
 
 impl fmt::Display for APIException {
@@ -1087,4 +1087,4 @@ mod tests {
 
         AppStoreServerAPIClient::new(key, "keyId", "issuerId", "com.example", Environment::LocalTesting, Box::new(request_overrider))
     }
-}
\ No newline at end of file
+}
diff --git a/src/primitives/notification_type_v2.rs b/src/primitives/notification_type_v2.rs
index 3901580..cde481e 100644
--- a/src/primitives/notification_type_v2.rs
+++ b/src/primitives/notification_type_v2.rs
@@ -41,4 +41,6 @@ pub enum NotificationTypeV2 {
     RefundReversed,
     #[serde(rename = "EXTERNAL_PURCHASE_TOKEN")]
     ExternalPurchaseToken,
+    #[serde(rename = "ONE_TIME_CHARGE")]
+    OneTimeCharge,
 }