diff --git a/README.md b/README.md
index b436e37..17bb920 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ $thepeer->chargeLink("lost-in-the-world", 5000, "Benz");
 * processSendReceipt
     - `accepts`: 
         - receipt_id (string)
-        - insufficient_funds (bool)
+        - event (string)
     - `returns`: object
     
 * indexUser
@@ -70,7 +70,7 @@ $thepeer->chargeLink("lost-in-the-world", 5000, "Benz");
 * authorizaDirectCharge
     - `accepts`:
         - reference (string)
-        - insufficient_funds (bool)
+        - event (string)
     - `returns`: object
 
 ## Extra
diff --git a/src/Thepeer.php b/src/Thepeer.php
index 47a9865..4dfd601 100644
--- a/src/Thepeer.php
+++ b/src/Thepeer.php
@@ -49,11 +49,7 @@ public function validateSignature(Request $payload)
 
         $calculatedSignature = hash_hmac('sha1', json_encode($payload->all()), $this->secretKey);
 
-        if ($headerSignature === $calculatedSignature) {
-            return true;
-        }
-
-        return false;
+       return $headerSignature === $calculatedSignature;
     }
 
     public function getSendReceipt(string $receipt)
@@ -69,12 +65,12 @@ public function getSendReceipt(string $receipt)
         }
     }
 
-    public function processSendReceipt(string $receipt, bool $insufficient_funds)
+    public function processSendReceipt(string $receipt, string $event)
     {
         try {
             $request = $this->client->post("/send/{$receipt}", [
                 "body" => json_encode([
-                    'insufficient_funds' => $insufficient_funds,
+                    'event' => $event,
                 ])
             ]);
 
@@ -166,12 +162,12 @@ public function chargeLink(string $link, int $amount, string $remark)
         }
     }
 
-    public function authorizeDirectCharge(string $reference, bool $insufficient_funds)
+    public function authorizeDirectCharge(string $reference, string $event)
     {
         try {
             $request = $this->client->post("/debit/{$reference}", [
                 "body" => json_encode([
-                    'insufficient_funds' => $insufficient_funds,
+                    'event' => $event,
                 ])
             ]);