diff --git a/backend/app/Controllers/ChatbotController.php b/backend/app/Controllers/ChatbotController.php
index c796df5..f8aabf6 100644
--- a/backend/app/Controllers/ChatbotController.php
+++ b/backend/app/Controllers/ChatbotController.php
@@ -108,12 +108,12 @@ class ChatbotController extends BaseController
 
         // 4. Retrieve the Gemini API key (custom or system default)
         $rules = ChatbotRule::findAllByCompany($request->company_id);
-        $apiKey = null;
+        $configuredKey = null;
         if (!empty($rules) && !empty($rules[0]['gemini_api_key'])) {
-            $apiKey = $rules[0]['gemini_api_key'];
+            $configuredKey = $rules[0]['gemini_api_key'];
         }
         
-        $apiKey = $apiKey ?: getenv('GEMINI_API_KEY');
+        $apiKey = \App\Services\GeminiService::getGeminiApiKey($configuredKey);
         
         if (empty($apiKey)) {
             $response->status(500)->json(['status' => 'error', 'message' => 'Gemini API Key is not configured in the system']);
diff --git a/backend/app/Controllers/WhatsAppController.php b/backend/app/Controllers/WhatsAppController.php
index f290c68..e65c0a6 100644
--- a/backend/app/Controllers/WhatsAppController.php
+++ b/backend/app/Controllers/WhatsAppController.php
@@ -358,7 +358,8 @@ class WhatsAppController extends BaseController
                     $replyText = $rule['ai_prompt']; // Under keyword rules, ai_prompt stores the predefined static reply
                 }
             } elseif ($rule['trigger_type'] === 'gemini_ai') {
-                $apiKey = $rule['gemini_api_key'] ?: getenv('GEMINI_API_KEY');
+                $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+                $apiKey = \App\Services\GeminiService::getGeminiApiKey($configuredGeminiKey);
                 if (empty($apiKey)) {
                     error_log("[Chatbot Warning] Gemini API Key is not set globally or for company " . $session['company_id']);
                     return;
@@ -399,8 +400,11 @@ class WhatsAppController extends BaseController
                         if (strpos($mimeType, ';') !== false) {
                             $mimeType = trim(explode(';', $mimeType)[0]);
                         }
-                        $elApiKey = !empty($rule['elevenlabs_api_key']) ? $rule['elevenlabs_api_key'] : (getenv('ELEVENLABS_API_KEY') ?: null);
-                        $elVoiceId = !empty($rule['elevenlabs_voice_id']) ? $rule['elevenlabs_voice_id'] : (getenv('ELEVENLABS_VOICE_ID') ?: null);
+                        $configuredElKey = !empty($rule['elevenlabs_api_key']) ? $rule['elevenlabs_api_key'] : null;
+                        $elApiKey = \App\Services\GeminiService::getElevenLabsApiKey($configuredElKey);
+                        
+                        $configuredVoiceId = !empty($rule['elevenlabs_voice_id']) ? $rule['elevenlabs_voice_id'] : null;
+                        $elVoiceId = \App\Services\GeminiService::getElevenLabsVoiceId($configuredVoiceId);
 
                         // Try generating native audio response first
                         $audioResponse = \App\Services\GeminiService::generateAudioResponseFromAudio(
diff --git a/backend/app/Core/Flows/ConversationFlowEngine.php b/backend/app/Core/Flows/ConversationFlowEngine.php
index 92427a2..b4a2d81 100644
--- a/backend/app/Core/Flows/ConversationFlowEngine.php
+++ b/backend/app/Core/Flows/ConversationFlowEngine.php
@@ -47,7 +47,8 @@ class ConversationFlowEngine
         $isAudio = !empty($msgData['audio']) && !empty($msgData['mimeType']);
         if ($isAudio) {
             $rule = \App\Models\ChatbotRule::findActiveForRule($companyId);
-            $apiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : getenv('GEMINI_API_KEY');
+            $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+            $apiKey = \App\Services\GeminiService::getGeminiApiKey($configuredGeminiKey);
             if (!empty($apiKey)) {
                 $transcription = \App\Services\GeminiService::transcribeAudio($apiKey, $msgData['audio'], $msgData['mimeType']);
                 if ($transcription) {
@@ -123,7 +124,40 @@ class ConversationFlowEngine
             }
 
             // 5. Send reply if one is provided
-            if ($result->getReplyText() !== '' || $result->getMediaUrl() !== null) {
+            $replySent = false;
+            if ($companyId === 1 && $flowName === 'driver_registration_flow' && $result->getReplyText() !== '') {
+                $rule = \App\Models\ChatbotRule::findActiveForRule($companyId);
+                $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+                $apiKey = \App\Services\GeminiService::getGeminiApiKey($configuredGeminiKey);
+                
+                if (!empty($apiKey)) {
+                    $configuredElKey = ($rule && !empty($rule['elevenlabs_api_key'])) ? $rule['elevenlabs_api_key'] : null;
+                    $elApiKey = \App\Services\GeminiService::getElevenLabsApiKey($configuredElKey);
+                    
+                    $configuredVoiceId = ($rule && !empty($rule['elevenlabs_voice_id'])) ? $rule['elevenlabs_voice_id'] : null;
+                    $elVoiceId = \App\Services\GeminiService::getElevenLabsVoiceId($configuredVoiceId);
+
+                    // Generate the audio voice note
+                    $audioData = \App\Services\GeminiService::generateAudioResponse(
+                        $apiKey,
+                        "أنت خدمة تسجيل كباتن تطبيق انطلق، تتحدث بلهجة سورية ودودة ومرحبة ومهنية جداً كأنك إنسان حقيقي.",
+                        $result->getReplyText(),
+                        'Puck',
+                        $elApiKey,
+                        $elVoiceId
+                    );
+
+                    if ($audioData && !empty($audioData['audio'])) {
+                        // Send the text message first
+                        self::sendReply($session, $phone, $result->getReplyText(), $result->getMediaUrl());
+                        // Then send the voice note
+                        self::sendReply($session, $phone, '', null, $audioData['audio'], $audioData['mimeType']);
+                        $replySent = true;
+                    }
+                }
+            }
+
+            if (!$replySent && ($result->getReplyText() !== '' || $result->getMediaUrl() !== null)) {
                 self::sendReply($session, $phone, $result->getReplyText(), $result->getMediaUrl());
             }
 
diff --git a/backend/app/Core/Flows/DriverRegistrationFlow.php b/backend/app/Core/Flows/DriverRegistrationFlow.php
index 895be7f..b65c8f1 100644
--- a/backend/app/Core/Flows/DriverRegistrationFlow.php
+++ b/backend/app/Core/Flows/DriverRegistrationFlow.php
@@ -169,7 +169,8 @@ EOT
         // Check if user requests postponement/delay (only if already started and not finished)
         if ($step !== 'start' && $step !== 'finished' && !empty($text)) {
             $rule = ChatbotRule::findActiveForRule($companyId);
-            $apiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : getenv('GEMINI_API_KEY');
+            $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+            $apiKey = GeminiService::getGeminiApiKey($configuredGeminiKey);
             if (!empty($apiKey)) {
                 $postponeData = $this->detectPostponement($text, $apiKey);
                 if ($postponeData !== null) {
@@ -366,7 +367,8 @@ EOT
 
         $companyId = $context['company_id'] ?? 1;
         $rule = ChatbotRule::findActiveForRule($companyId);
-        $apiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : getenv('GEMINI_API_KEY');
+        $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+        $apiKey = GeminiService::getGeminiApiKey($configuredGeminiKey);
 
         if (empty($apiKey)) {
             error_log("[DriverRegistrationFlow] Gemini API key not configured.");
diff --git a/backend/app/Services/GeminiService.php b/backend/app/Services/GeminiService.php
index 2f0517c..381a93d 100644
--- a/backend/app/Services/GeminiService.php
+++ b/backend/app/Services/GeminiService.php
@@ -6,6 +6,51 @@ class GeminiService
 {
     public const DEFAULT_MODEL = 'gemini-3.1-flash-lite';
 
+    /**
+     * Get a random Gemini API key from a comma-separated list of keys
+     */
+    public static function getGeminiApiKey(?string $configuredKey = null): string
+    {
+        $keySource = !empty($configuredKey) ? $configuredKey : getenv('GEMINI_API_KEY');
+        if (empty($keySource)) {
+            return '';
+        }
+        $keys = array_filter(array_map('trim', explode(',', $keySource)));
+        if (empty($keys)) {
+            return '';
+        }
+        return $keys[array_rand($keys)];
+    }
+
+    /**
+     * Get a random ElevenLabs API key from a comma-separated list of keys
+     */
+    public static function getElevenLabsApiKey(?string $configuredKey = null): ?string
+    {
+        $keySource = !empty($configuredKey) ? $configuredKey : getenv('ELEVENLABS_API_KEY');
+        if (empty($keySource)) {
+            return null;
+        }
+        $keys = array_filter(array_map('trim', explode(',', $keySource)));
+        if (empty($keys)) {
+            return null;
+        }
+        return $keys[array_rand($keys)];
+    }
+
+    /**
+     * Get a random ElevenLabs Voice ID from a comma-separated list of Voice IDs
+     */
+    public static function getElevenLabsVoiceId(?string $configuredVoiceId = null): string
+    {
+        $voiceIdSource = !empty($configuredVoiceId) ? $configuredVoiceId : (getenv('ELEVENLABS_VOICE_ID') ?: 'pNInz6obpgDQGcFmaJgB');
+        $voiceIds = array_filter(array_map('trim', explode(',', $voiceIdSource)));
+        if (empty($voiceIds)) {
+            return 'pNInz6obpgDQGcFmaJgB';
+        }
+        return $voiceIds[array_rand($voiceIds)];
+    }
+
     /**
      * Call Gemini API to generate a response
      */
diff --git a/backend/public/index.php b/backend/public/index.php
index 7eca031..dff205a 100644
--- a/backend/public/index.php
+++ b/backend/public/index.php
@@ -311,9 +311,14 @@ $router->get('/api/external/cron/send-reminders', function ($request, $response)
 
         // Get company chatbot rule details
         $rule = \App\Models\ChatbotRule::findActiveForRule($companyId);
-        $geminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : getenv('GEMINI_API_KEY');
-        $elApiKey = ($rule && !empty($rule['elevenlabs_api_key'])) ? $rule['elevenlabs_api_key'] : getenv('ELEVENLABS_API_KEY');
-        $elVoiceId = ($rule && !empty($rule['elevenlabs_voice_id'])) ? $rule['elevenlabs_voice_id'] : getenv('ELEVENLABS_VOICE_ID');
+        $configuredGeminiKey = ($rule && !empty($rule['gemini_api_key'])) ? $rule['gemini_api_key'] : null;
+        $geminiKey = \App\Services\GeminiService::getGeminiApiKey($configuredGeminiKey);
+        
+        $configuredElKey = ($rule && !empty($rule['elevenlabs_api_key'])) ? $rule['elevenlabs_api_key'] : null;
+        $elApiKey = \App\Services\GeminiService::getElevenLabsApiKey($configuredElKey);
+        
+        $configuredVoiceId = ($rule && !empty($rule['elevenlabs_voice_id'])) ? $rule['elevenlabs_voice_id'] : null;
+        $elVoiceId = \App\Services\GeminiService::getElevenLabsVoiceId($configuredVoiceId);
 
         // Fetch company WhatsApp session
         $session = \App\Models\WhatsAppSession::findByCompany($companyId);