diff --git a/src/Transaction.php b/src/Transaction.php
index 83a163d..b7339e7 100644
--- a/src/Transaction.php
+++ b/src/Transaction.php
@@ -71,6 +71,10 @@ public function payment(
         curl_setopt($request_handle, CURLOPT_CUSTOMREQUEST, 'POST');
         curl_setopt($request_handle, CURLOPT_POSTFIELDS, $payload);
         $result = curl_exec($request_handle);
+       
+        if ($result === false) 
+            $result = curl_error($request_handle);
+        
         return new TransactionResponse($result);
     }
 
@@ -103,6 +107,10 @@ public function refund(string $transaction_id, float $amount): TransactionRespon
         curl_setopt($request_handle, CURLOPT_CUSTOMREQUEST, 'PUT');
         curl_setopt($request_handle, CURLOPT_POSTFIELDS, $payload);
         $result = curl_exec($request_handle);
+        
+        if ($result === false) 
+            $result = curl_error($request_handle);
+        
         return new TransactionResponse($result);
     }
 
@@ -128,6 +136,10 @@ public function query(string $query_reference): TransactionResponseInterface
             'Authorization: ' . $this->config->getBearerToken()
         ]);
         $result = curl_exec($request_handle);
+        
+        if ($result === false) 
+            $result = curl_error($request_handle);
+        
         return new TransactionResponse($result);
     }
-}
\ No newline at end of file
+}