diff --git a/src/Exceptions/CouldNotSendNotification.php b/src/Exceptions/CouldNotSendNotification.php
index 16c8313..4a0d07b 100644
--- a/src/Exceptions/CouldNotSendNotification.php
+++ b/src/Exceptions/CouldNotSendNotification.php
@@ -6,16 +6,16 @@ class CouldNotSendNotification extends \Exception
 {
     public static function recipientNotSetError()
     {
-        return new static("Recipient phone number not set");
+        return new static('Recipient phone number not set');
     }
 
     public static function senderNotSetError()
     {
-        return new static("Sender phone number not set");
+        return new static('Sender phone number not set');
     }
 
     public static function contentNotSetError()
     {
-        return new static("Message content empty");
+        return new static('Message content empty');
     }
 }
diff --git a/src/Exceptions/InvalidConfiguration.php b/src/Exceptions/InvalidConfiguration.php
index 1245c8b..c1999c7 100644
--- a/src/Exceptions/InvalidConfiguration.php
+++ b/src/Exceptions/InvalidConfiguration.php
@@ -6,11 +6,11 @@ class InvalidConfiguration extends \Exception
 {
     public static function apiKeyNotSet()
     {
-        return new static("Hubtel API key not set");
+        return new static('Hubtel API key not set');
     }
 
     public static function apiSecretNotSet()
     {
-        return new static ("Hubtel API secret not set");
+        return new static ('Hubtel API secret not set');
     }
 }
\ No newline at end of file
diff --git a/src/HubtelChannel.php b/src/HubtelChannel.php
index 5d91f3a..d6d513a 100644
--- a/src/HubtelChannel.php
+++ b/src/HubtelChannel.php
@@ -30,26 +30,22 @@ public function send($notifiable, Notification $notification)
     {
         $message = $notification->toSMS($notifiable);
 
-        if(is_null($message->from))
-        {
+        if (is_null($message->from)) {
             throw CouldNotSendNotification::senderNotSetError();
         }
 
-        if(is_null($message->to) && is_null($notifiable->routeNotificationFor('SMS')))
-        {
+        if (is_null($message->to) && is_null($notifiable->routeNotificationFor('SMS'))) {
             throw CouldNotSendNotification::recipientNotSetError();
         }
 
-        if(is_null($message->content))
-        {
+        if (is_null($message->content)) {
             throw CouldNotSendNotification::contentNotSetError();
         }
 
-        if(is_null($message->to) && !is_null($notifiable->routeNotificationFor('SMS')))
-        {
+        if (is_null($message->to) && !is_null($notifiable->routeNotificationFor('SMS'))) {
             $message->to = $notifiable->routeNotificationFor('SMS');
         }
         
-       return $this->client->send($message);
+        return $this->client->send($message);
     }
 }
diff --git a/src/HubtelMessage.php b/src/HubtelMessage.php
index ad57beb..ff04edc 100644
--- a/src/HubtelMessage.php
+++ b/src/HubtelMessage.php
@@ -5,19 +5,19 @@
 class HubtelMessage
 {
     /**
-     * Sender's phone number
+     * Sender's phone number.
      * @var string
      */
     public $from;
 
     /**
-     * Recipient phone number
+     * Recipient phone number.
      * @var string
      */
     public $to;
 
     /**
-     * Message
+     * Message.
      * @var string
      */
     public $content;
@@ -30,31 +30,31 @@ class HubtelMessage
 
     /**
      *The Reference Number provided by the Client 
-     *prior to sending the message
+     *prior to sending the message.
      *@var int
      */
     public $clientReference;
 
     /**
-     * Indicates the type of message to be sent
+     * Indicates the type of message to be sent.
      *@var int
      */
     public $type;
 
     /**
-     *The User Data Header of the SMS Message being sent
+     *The User Data Header of the SMS Message being sent.
      *@var string 
      */
     public $udh;
 
     /**
-     *Indicates when to send the message
+     *Indicates when to send the message.
      *@var mixed
      */
     public $time;
 
     /**
-     *Indicates if this message must be sent as a flash message
+     *Indicates if this message must be sent as a flash message.
      *@var bool
      */
     public $flashMessage;
@@ -68,7 +68,7 @@ public function __construct($from = null, $to = null, $content = null)
     }
 
     /**
-     * Set the message sender's phone number
+     * Set the message sender's phone number.
      * @param string $from
      * @return $this
      */
@@ -79,7 +79,7 @@ public function from($from)
     }
 
     /**
-     * Set the recipient's phone number
+     * Set the recipient's phone number.
      * @param string $to
      * @return $this
      */
@@ -90,7 +90,7 @@ public function to($to)
     }
 
     /**
-     * Set the message content
+     * Set the message content.
      * @param string $content
      * @return $this
      */
@@ -101,17 +101,17 @@ public function content($content)
     }
 
     /**
-     *Set delivery report status
+     *Set delivery report status.
      * @return $this
      */
     public function registeredDelivery()
     {
-        $this->registeredDelivery = "true";
+        $this->registeredDelivery = 'true';
         return $this;
     }
 
     /**
-     * Set the client reference number
+     * Set the client reference number.
      * @param int $reference
      * @return $this
      */
@@ -122,7 +122,7 @@ public function clientReference($reference)
     }
 
     /**
-     * Set the message type
+     * Set the message type.
      * @param int $type
      * @return $this
      */
@@ -133,7 +133,7 @@ public function type($type)
     }
 
     /**
-     * Set the User Data Header of the SMS Message
+     * Set the User Data Header of the SMS Message.
      * @param string $udh
      * @return $this
      */
@@ -144,23 +144,23 @@ public function udh($udh)
     }
 
     /**
-     * Set the time to send the message
+     * Set the time to send the message.
      * @param mixed $time
      * @return $this
      */
     public function time($time)
     {
-        $this->time =$time;
+        $this->time = $time;
         return $this;
     }
 
     /**
-     * Set message as a flash message
+     * Set message as a flash message.
      * @return $this
      */
     public function flashMessage()
     {
-        $this->flashMessage = "true";
+        $this->flashMessage = 'true';
         return $this;
     }
 }
diff --git a/src/SMSClients/HubtelSMSClient.php b/src/SMSClients/HubtelSMSClient.php
index d364a91..50a03d1 100644
--- a/src/SMSClients/HubtelSMSClient.php
+++ b/src/SMSClients/HubtelSMSClient.php
@@ -15,7 +15,7 @@ class HubtelSMSClient
 
     public $apiSecret;
     
-    public function __construct($apiKey,$apiSecret,Client $client)
+    public function __construct($apiKey, $apiSecret, Client $client)
     {
         $this->apiKey = $apiKey;
         $this->apiSecret = $apiSecret;
@@ -24,7 +24,7 @@ public function __construct($apiKey,$apiSecret,Client $client)
 
     public function send(HubtelMessage $message)
     {
-        return $this->client->get($this->getApiURL().$this->buildMessage($message,$this->apiKey,$this->apiSecret));
+        return $this->client->get($this->getApiURL().$this->buildMessage($message, $this->apiKey, $this->apiSecret));
     }
 
     public function getApiURL()
@@ -32,16 +32,14 @@ public function getApiURL()
         return 'https://api.hubtel.com/v1/messages/send?';
     }
 
-    public function buildMessage(HubtelMessage $message,$apiKey,$apiSecret)
+    public function buildMessage(HubtelMessage $message, $apiKey, $apiSecret)
     {
-        $this->validateConfig($apiKey,$apiSecret);
+        $this->validateConfig($apiKey, $apiSecret);
         
-        $params = array("ClientId"=>$apiKey,"ClientSecret" => $apiSecret);
+        $params = array('ClientId'=>$apiKey,'ClientSecret' => $apiSecret);
 
-        foreach(get_object_vars($message) as $property => $value)
-        {
-            if(!is_null($value))
-            {
+        foreach(get_object_vars($message) as $property => $value) {
+            if(!is_null($value)) {
                 $params[ucfirst($property)] = $value;
             }
         }
@@ -49,15 +47,13 @@ public function buildMessage(HubtelMessage $message,$apiKey,$apiSecret)
         return http_build_query($params);
     }
 
-    public function validateConfig($apiKey,$apiSecret)
+    public function validateConfig($apiKey, $apiSecret)
     {
-        if(is_null($apiKey))
-        {
+        if(is_null($apiKey)) {
             throw InvalidConfiguration::apiKeyNotSet();
         }
 
-        if(is_null($apiSecret))
-        {
+        if(is_null($apiSecret)) {
             throw InvalidConfiguration::apiSecretNotSet();
         }
         return $this;
diff --git a/src/config/hubtel.php b/src/config/hubtel.php
index 72670a2..3fb0abd 100644
--- a/src/config/hubtel.php
+++ b/src/config/hubtel.php
@@ -1,11 +1,12 @@
 <?php
 /**
-* This file holds the configuration keys
+* This file holds the configuration keys.
 */
 
 return [
     'account' => [
         'key' => env('HUBTEL_API_KEY'),
-        'secret' => env('HUBTEL_API_SECRET')
-    ]
+        'secret' => env('HUBTEL_API_SECRET'),
+    ],
+    
 ];
\ No newline at end of file
diff --git a/tests/HubtelMessageTest.php b/tests/HubtelMessageTest.php
index 3a2f0ab..6e47a68 100644
--- a/tests/HubtelMessageTest.php
+++ b/tests/HubtelMessageTest.php
@@ -18,72 +18,72 @@ public function setUp()
     /** @test **/
     public function it_can_construct_the_message_with_the_basic_required_parameters()
     {
-        $message = new HubtelMessage("Norris","1234567890","Hello There");
-        $this->assertEquals($message->from,"Norris");
-        $this->assertEquals($message->to,"1234567890");
-        $this->assertEquals($message->content,"Hello There");
+        $message = new HubtelMessage('Norris', '1234567890', 'Hello There');
+        $this->assertEquals($message->from, 'Norris');
+        $this->assertEquals($message->to, '1234567890');
+        $this->assertEquals($message->content, 'Hello There');
     }
 
     /** @test **/
     public function it_can_set_the_message_sender_from_a_method()
     {
-        $this->message->from("Norris");
-        $this->assertEquals($this->message->from,"Norris");
+        $this->message->from('Norris');
+        $this->assertEquals($this->message->from, 'Norris');
     }
 
     /** @test **/
     public function it_can_set_the_message_recipient_from_a_method()
     {
-        $this->message->to("1234567890");
-        $this->assertEquals($this->message->to,"1234567890");
+        $this->message->to('1234567890');
+        $this->assertEquals($this->message->to, '1234567890');
     }
 
     /** @test **/
     public function it_can_set_the_message_content_from_a_method()
     {
-        $this->message->content("Hello zing");
-        $this->assertEquals($this->message->content,"Hello zing");
+        $this->message->content('Hello zing');
+        $this->assertEquals($this->message->content, 'Hello zing');
     }
 
     /** @test **/
     public function it_can_request_for_a_delivery_report()
     {
         $this->message->registeredDelivery();
-        $this->assertEquals($this->message->registeredDelivery,"true");
+        $this->assertEquals($this->message->registeredDelivery, 'true');
     }
 
     /** @test **/
     public function it_can_add_a_client_reference_to_the_sms()
     {
-        $this->message->clientReference("12345");
-        $this->assertEquals($this->message->clientReference,"12345");
+        $this->message->clientReference('12345');
+        $this->assertEquals($this->message->clientReference, '12345');
     }
 
     /** @test **/
     public function it_can_state_the_message_type()
     {
         $this->message->type(2);
-        $this->assertEquals($this->message->type,2);
+        $this->assertEquals($this->message->type, 2);
     }
 
     /** @test **/
     public function it_can_add_user_defined_headers_to_the_message()
     {
-        $this->message->udh("48656c6c6f207a696e67");
-        $this->assertEquals($this->message->udh,"48656c6c6f207a696e67");
+        $this->message->udh('48656c6c6f207a696e67');
+        $this->assertEquals($this->message->udh, '48656c6c6f207a696e67');
     }
 
     /** @test **/
     public function it_can_set_the_time_to_send_the_message()
     {
-        $this->message->time("2017-10-12 10:24:30");
-        $this->assertEquals($this->message->time,"2017-10-12 10:24:30");
+        $this->message->time('2017-10-12 10:24:30');
+        $this->assertEquals($this->message->time, '2017-10-12 10:24:30');
     }
 
     /** @test **/
     public function it_can_send_the_message_as_a_flash_message()
     {
         $this->message->flashMessage();
-        $this->assertEquals($this->message->flashMessage,"true");
+        $this->assertEquals($this->message->flashMessage, 'true');
     }
 }
\ No newline at end of file