diff --git a/src/Models/Claim.php b/src/Models/Claim.php
index c2cd34a..687f706 100644
--- a/src/Models/Claim.php
+++ b/src/Models/Claim.php
@@ -31,7 +31,7 @@ abstract class Claim extends ClientModel
         'message'     => 'required|string|min:3',
         'brand_id'    => 'required|int|min:1',
         'subject_id'  => 'required|int|min:1',
-        'customer_id' => 'sometimes|nullable|int|min:1',
+        'hashcode'    => 'sometimes|nullable|string|size:36',
     ];
 
     /**
@@ -80,8 +80,10 @@ abstract class Claim extends ClientModel
         );
 
         // Add customer relation if exist.
-        $crmCustomer           = (new CrmApiV4())->getCustomer($email);
-        $params['customer_id'] = $crmCustomer;
+        $crmCustomer = (new CrmApiV4())->getCustomer($email);
+        if (!is_null($crmCustomer)) {
+            $params['hashcode'] = $crmCustomer->hashcode;
+        }
 
         // Validate all data.
         foreach ($params as $key => $value) {
diff --git a/src/Transport/Response.php b/src/Transport/Response.php
index c6bb81d..af54657 100644
--- a/src/Transport/Response.php
+++ b/src/Transport/Response.php
@@ -101,7 +101,6 @@ class Response
             $this->message = $response->getReasonPhrase();
         }
 
-
         // * Body should be json data.
         if (($decodedJson = $this->tryDecodeJson($this->body->getContents())) === false) {
             if (Utils::getConfig('app.env') === 'testing') {