diff --git a/README.md b/README.md
index 9b588ee..41057c5 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ $flexpay = new Flexpay(
 
 ```php
 use Devscast\Flexpay\Data\Currency;
-use Devscast\Flexpay\Request\VposRequest;
+use Devscast\Flexpay\Request\CardRequest;
 use Devscast\Flexpay\Request\MobileRequest;
 
 $mobile = new MobileRequest(
@@ -51,7 +51,7 @@ $mobile = new MobileRequest(
     callbackUrl: "your_website_webhook_url",
 );
 
-$card = new VposRequest(
+$card = new CardRequest(
     amount: 10, // 10 USD
     currency: Currency::USD,
     reference: "your_unique_transaction_reference",
diff --git a/src/Client.php b/src/Client.php
index a1e04df..77afe16 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -5,13 +5,13 @@
 namespace Devscast\Flexpay;
 
 use Devscast\Flexpay\Exception\NetworkException;
+use Devscast\Flexpay\Request\CardRequest;
 use Devscast\Flexpay\Request\MobileRequest;
 use Devscast\Flexpay\Request\Request;
-use Devscast\Flexpay\Request\VposRequest;
+use Devscast\Flexpay\Response\CardResponse;
 use Devscast\Flexpay\Response\CheckResponse;
 use Devscast\Flexpay\Response\FlexpayResponse;
 use Devscast\Flexpay\Response\PaymentResponse;
-use Devscast\Flexpay\Response\VposResponse;
 use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\HttpClient\Retry\GenericRetryStrategy;
 use Symfony\Component\HttpClient\RetryableHttpClient;
@@ -89,14 +89,14 @@ public function mobile(MobileRequest $request): PaymentResponse
      *
      * @throws NetworkException
      */
-    public function vpos(VposRequest $request): VposResponse
+    public function card(CardRequest $request): CardResponse
     {
         $request->setCredential($this->credential);
 
         try {
-            /** @var VposResponse $response */
+            /** @var CardResponse $response */
             $response = $this->getMappedData(
-                type: VposResponse::class,
+                type: CardResponse::class,
                 data: $this->http->request('POST', $this->environment->getVposAskUrl(), [
                     'json' => $request->getPayload(),
                 ])->toArray()
@@ -111,11 +111,11 @@ public function vpos(VposRequest $request): VposResponse
     /**
      * @throws NetworkException
      */
-    public function pay(Request $request): PaymentResponse|VposResponse
+    public function pay(Request $request): PaymentResponse|CardResponse
     {
         return match (true) {
             $request instanceof MobileRequest => $this->mobile($request),
-            $request instanceof VposRequest => $this->vpos($request),
+            $request instanceof CardRequest => $this->card($request),
             default => throw new \RuntimeException('Unsupported request')
         };
     }
diff --git a/src/Request/VposRequest.php b/src/Request/CardRequest.php
similarity index 58%
rename from src/Request/VposRequest.php
rename to src/Request/CardRequest.php
index d697052..44fb49a 100644
--- a/src/Request/VposRequest.php
+++ b/src/Request/CardRequest.php
@@ -8,35 +8,45 @@
 use Webmozart\Assert\Assert;
 
 /**
- * Class VposRequest.
+ * Class CardRequest.
  *
  * @author bernard-ng <bernard@devscast.tech>
  */
-final class VposRequest extends Request
+final class CardRequest extends Request
 {
     public function __construct(
         float $amount,
         string $reference,
         Currency $currency,
+        string $description,
         string $callbackUrl,
-        public readonly ?string $homeUrl,
-        ?string $description = null,
-        ?string $approveUrl = null,
-        ?string $cancelUrl = null,
-        ?string $declineUrl = null
+        string $approveUrl,
+        string $cancelUrl,
+        string $declineUrl,
+        public string $homeUrl,
     ) {
+        Assert::notEmpty($description, 'The description must be provided');
         Assert::notEmpty($approveUrl, 'The approve url must be provided');
+        Assert::notEmpty($cancelUrl, 'The cancel url must be provided');
+        Assert::notEmpty($declineUrl, 'The decline url must be provided');
+        Assert::notEmpty($homeUrl, 'The home url must be provided');
+        Assert::lengthBetween($reference, 1, 25, 'The reference must be between 1 and 25 characters');
 
         parent::__construct($amount, $reference, $currency, $callbackUrl, $approveUrl, $description, $cancelUrl, $declineUrl);
     }
 
+    /**
+     * Yeah, I know this is weird
+     * But I'm not responsible for the API design.
+     * so don't blame :D
+     */
     #[\Override]
     public function getPayload(): array
     {
         return [
             'amount' => $this->amount,
             'merchant' => $this->merchant,
-            'authorization' => $this->authorization,
+            'authorization' => sprintf('Bearer %s', $this->authorization),
             'reference' => $this->reference,
             'currency' => $this->currency->value,
             'callback_url' => $this->callbackUrl,
diff --git a/src/Response/VposResponse.php b/src/Response/CardResponse.php
similarity index 83%
rename from src/Response/VposResponse.php
rename to src/Response/CardResponse.php
index cd05b3f..b6bc691 100644
--- a/src/Response/VposResponse.php
+++ b/src/Response/CardResponse.php
@@ -7,11 +7,11 @@
 use Devscast\Flexpay\Data\Status;
 
 /**
- * Class VposResponse.
+ * Class CardResponse.
  *
  * @author bernard-ng <bernard@devscast.tech>
  */
-final class VposResponse extends FlexpayResponse
+final class CardResponse extends FlexpayResponse
 {
     public function __construct(
         public Status $code,
diff --git a/tests/ClientTest.php b/tests/ClientTest.php
index e27dd7f..bbcb411 100644
--- a/tests/ClientTest.php
+++ b/tests/ClientTest.php
@@ -9,9 +9,9 @@
 use Devscast\Flexpay\Credential;
 use Devscast\Flexpay\Data\Currency;
 use Devscast\Flexpay\Data\Transaction;
-use Devscast\Flexpay\Request\VposRequest;
+use Devscast\Flexpay\Request\CardRequest;
 use Devscast\Flexpay\Request\MobileRequest;
-use Devscast\Flexpay\Response\VposResponse;
+use Devscast\Flexpay\Response\CardResponse;
 use Devscast\Flexpay\Response\CheckResponse;
 use Devscast\Flexpay\Response\PaymentResponse;
 use Symfony\Component\HttpClient\MockHttpClient;
@@ -41,23 +41,26 @@ private function getResponse(string $file): MockResponse
         return new MockResponse((string) file_get_contents(__DIR__ . '/fixtures/' . $file));
     }
 
-    public function testVpos(): void
+    public function testCard(): void
     {
-        $flexpay = $this->getFlexpay($this->getResponse('vpos_ask.json'));
-        $request = new VposRequest(
+        $flexpay = $this->getFlexpay($this->getResponse('card_success.json'));
+        $request = new CardRequest(
             amount: 1,
             reference: 'ref',
             currency: Currency::USD,
+            description: 'test',
             callbackUrl: 'http://localhost:8000/callback',
+            approveUrl: 'http://localhost:8000/approve',
+            cancelUrl: 'http://localhost:8000/cancel',
+            declineUrl: 'http://localhost:8000/decline',
             homeUrl: 'http://localhost:8000/home',
-            approveUrl: 'http://localhost:8000/approve'
         );
-        $response = $flexpay->vpos($request);
+        $response = $flexpay->card($request);
 
-        $this->assertInstanceOf(VposResponse::class, $response);
+        $this->assertInstanceOf(CardResponse::class, $response);
         $this->assertTrue($response->isSuccessful());
-        $this->assertEquals('6708a4708d470_1728619632', $response->orderNumber);
-        $this->assertEquals('https://beta-cardpayment.flexpay.cd/vpos/pay/6708a4708d470_1728619632', $response->url);
+        $this->assertEquals('O42iABI27568020268434827', $response->orderNumber);
+        $this->assertEquals('https://gwvisa.flexpay.cd/checkout/bbba6b699af8a70e9cfa010d6d12dba5_670d206b7defb', $response->url);
     }
 
     public function testSuccessCheck(): void
diff --git a/tests/EnvironmentTest.php b/tests/EnvironmentTest.php
index fcf97b5..9746bea 100644
--- a/tests/EnvironmentTest.php
+++ b/tests/EnvironmentTest.php
@@ -31,7 +31,7 @@ public function testEnvironment(): void
         $this->assertEquals(Environment::SANDBOX, Environment::from('dev'));
     }
 
-    public function testGetVposAskUrl(): void
+    public function testGetCardPaymentUrl(): void
     {
         $this->assertEquals(
             'https://cardpayment.flexpay.cd/v1.1/pay',
@@ -55,18 +55,6 @@ public function testGetMobilePaymentUrl(): void
         );
     }
 
-    public function testGetVposPaymentUrl(): void
-    {
-        $this->assertEquals(
-            'https://cardpayment.flexpay.cd/vpos/pay/123456',
-            $this->prod->getVposPaymentUrl('123456')
-        );
-        $this->assertEquals(
-            'https://beta-cardpayment.flexpay.cd/vpos/pay/123456',
-            $this->dev->getVposPaymentUrl('123456')
-        );
-    }
-
     public function testGetCheckStatusUrl(): void
     {
         $this->assertEquals(
diff --git a/tests/fixtures/card_success.json b/tests/fixtures/card_success.json
new file mode 100644
index 0000000..1d9f4b2
--- /dev/null
+++ b/tests/fixtures/card_success.json
@@ -0,0 +1,6 @@
+{
+    "code": 0,
+    "message": "Redirection en cours",
+    "orderNumber": "O42iABI27568020268434827",
+    "url": "https://gwvisa.flexpay.cd/checkout/bbba6b699af8a70e9cfa010d6d12dba5_670d206b7defb"
+}
diff --git a/tests/fixtures/vpos_ask.json b/tests/fixtures/vpos_ask.json
deleted file mode 100644
index 83bd6ae..0000000
--- a/tests/fixtures/vpos_ask.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "code": 0,
-    "message": "Ok",
-    "orderNumber": "6708a4708d470_1728619632",
-    "url": "https://beta-cardpayment.flexpay.cd/vpos/pay/6708a4708d470_1728619632"
-}