diff --git a/src/Adapter/GuzzleHttpAdapter.php b/src/Adapter/GuzzleHttpAdapter.php
index 3498a7f..8f76195 100644
--- a/src/Adapter/GuzzleHttpAdapter.php
+++ b/src/Adapter/GuzzleHttpAdapter.php
@@ -159,9 +159,9 @@ protected function handleError()
     {
         $body = (string) $this->response->getBody();
         $code = (int) $this->response->getStatusCode();
-
         $content = json_decode($body);
+        $error = $content->errors[0];
 
-        throw new HttpException(isset($content->message) ? $content->message : 'Request not processed.', $code);
+        throw new HttpException(isset($error) ? $error->description : 'Request not processed.', $code);
     }
 }
\ No newline at end of file
diff --git a/src/Api/Payment.php b/src/Api/Payment.php
index f060751..ca53ef7 100644
--- a/src/Api/Payment.php
+++ b/src/Api/Payment.php
@@ -3,6 +3,7 @@
 
 // Entities
 use Softr\Asaas\Entity\Payment as PaymentEntity;
+use Softr\Asaas\Entity\Installment as InstallmentEntity;
 
 /**
  * Payment API Endpoint
@@ -67,6 +68,21 @@ public function getByCustomer($customerId, array $filters = [])
         }, $payments->data);
     }
 
+     /**
+     * Get Payment By Installment Id
+     *
+     * @param   int  $installmentId   Installment Id
+     * @return  PaymentEntity
+     */
+     public function getByInstallmentId($installmentId)
+     {
+        $installment = $this->adapter->get(sprintf('%s/payments?installment=%s', $this->endpoint, $installmentId));
+
+        $installment = json_decode($installment);
+
+        return new InstallmentEntity($installment);
+    }
+
     /**
      * Get Payments By Subscription Id
      *
diff --git a/src/Entity/Installment.php b/src/Entity/Installment.php
new file mode 100644
index 0000000..8dedb2e
--- /dev/null
+++ b/src/Entity/Installment.php
@@ -0,0 +1,17 @@
+<?php
+namespace Softr\Asaas\Entity;
+
+/**
+ * Installment Entity
+ *
+ * @author Shirleyson Kaisser <skaisser@gmail.com>
+ */
+final class Installment extends \Softr\Asaas\Entity\AbstractEntity
+{
+    /**
+     * @var array
+     */
+    public $data;
+
+    
+}
\ No newline at end of file
diff --git a/src/Entity/Payment.php b/src/Entity/Payment.php
index 72082c4..126335a 100644
--- a/src/Entity/Payment.php
+++ b/src/Entity/Payment.php
@@ -88,6 +88,10 @@ final class Payment extends \Softr\Asaas\Entity\AbstractEntity
      */
     public $boletoUrl;
 
+    /**
+     * @var int
+     */
+    public $installment;
     /**
      * @var int
      */