diff --git a/src/Driver.php b/src/Driver.php
index 0e4f6d9..4bd27bf 100644
--- a/src/Driver.php
+++ b/src/Driver.php
@@ -40,7 +40,9 @@ class Driver extends BaseDriver
 
     public function start(): Response
     {
-        $this->init();
+        $initialized = $this->init();
+
+        $this->initialized($initialized);
 
         $request = GetQR::make($this->model);
 
@@ -67,4 +69,11 @@ protected function init(): Response
 
         return $this->request($request, Responses\Init::class);
     }
+
+    protected function initialized(Response $initialized): void
+    {
+        $external_id = $initialized->getExternalId();
+
+        $this->payment->cashier()->updateOrCreate(compact('external_id'));
+    }
 }
diff --git a/src/Requests/Cancel.php b/src/Requests/Cancel.php
index b85af19..456b2a5 100644
--- a/src/Requests/Cancel.php
+++ b/src/Requests/Cancel.php
@@ -29,8 +29,6 @@ public function getRawBody(): array
             'PaymentId' => $this->model->getExternalId(),
 
             'Amount' => $this->model->getSum(),
-
-            'Currency' => $this->model->getCurrency(),
         ];
     }
 }
diff --git a/tests/DriverTest.php b/tests/DriverTest.php
index 0646d6c..4fb1bfa 100644
--- a/tests/DriverTest.php
+++ b/tests/DriverTest.php
@@ -21,6 +21,7 @@
 use Helldar\CashierDriver\Tinkoff\QrCode\Driver as QR;
 use Helldar\Contracts\Cashier\Driver as DriverContract;
 use Helldar\Contracts\Cashier\Http\Response as ResponseContract;
+use Helldar\Support\Facades\Http\Url;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Tests\database\seeders\DatabaseSeeder;
 use Tests\Fixtures\Models\RequestPayment;
@@ -37,22 +38,47 @@ public function testStart()
 
         $this->assertInstanceOf(Response::class, $response);
         $this->assertInstanceOf(ResponseContract::class, $response);
+
+        $this->assertIsString($response->getExternalId());
+        $this->assertMatchesRegularExpression('/^(\d+)$/', $response->getExternalId());
+
+        $this->assertNull($response->getStatus());
+
+        $this->assertTrue(Url::is($response->getUrl()));
     }
 
     public function testCheck()
     {
+        $this->driver()->start();
+
         $response = $this->driver()->check();
 
         $this->assertInstanceOf(Response::class, $response);
         $this->assertInstanceOf(ResponseContract::class, $response);
+
+        $this->assertIsString($response->getExternalId());
+        $this->assertMatchesRegularExpression('/^(\d+)$/', $response->getExternalId());
+
+        $this->assertSame('FORM_SHOWED', $response->getStatus());
+
+        $this->assertSame([
+            'status' => 'FORM_SHOWED',
+        ], $response->toArray());
     }
 
     public function testRefund()
     {
+        $this->driver()->start();
+
         $response = $this->driver()->refund();
 
         $this->assertInstanceOf(Response::class, $response);
         $this->assertInstanceOf(ResponseContract::class, $response);
+
+        $this->assertIsString($response->getExternalId());
+        $this->assertMatchesRegularExpression('/^(\d+)$/', $response->getExternalId());
+
+        $this->assertSame('CANCELED', $response->getStatus());
     }
 
     protected function setUp(): void
@@ -73,7 +99,7 @@ protected function driver(): DriverContract
 
     protected function payment(): RequestPayment
     {
-        return RequestPayment::findOrFail(self::PAYMENT_ID);
+        return RequestPayment::firstOrFail();
     }
 
     protected function runSeeders()
diff --git a/tests/Fixtures/Models/RequestPayment.php b/tests/Fixtures/Models/RequestPayment.php
index c4b540e..9428de7 100644
--- a/tests/Fixtures/Models/RequestPayment.php
+++ b/tests/Fixtures/Models/RequestPayment.php
@@ -19,7 +19,7 @@ class RequestPayment extends Model
 
     protected $table = 'payments';
 
-    protected $fillable = ['id', 'type_id', 'status_id', 'sum', 'currency', 'created_at'];
+    protected $fillable = ['id', 'type_id', 'status_id', 'sum', 'currency'];
 
     protected $casts = [
         'id' => 'integer',
diff --git a/tests/Requests/CancelTest.php b/tests/Requests/CancelTest.php
index ece2516..3a3c438 100644
--- a/tests/Requests/CancelTest.php
+++ b/tests/Requests/CancelTest.php
@@ -76,11 +76,10 @@ public function testBody()
         $this->assertSame([
             'PaymentId' => self::PAYMENT_EXTERNAL_ID,
             'Amount'    => self::PAYMENT_SUM_FORMATTED,
-            'Currency'  => self::CURRENCY_FORMATTED,
 
             'TerminalKey' => $this->getTerminalKey(),
 
-            'Token' => '668f52d9fb6f6ff75b4a319b7bc34552cf39c82cc0cf2e7a2146f54b8977cb01',
+            'Token' => '8473d8d4cafb9ec63071e9050c05e0dd1178fc8e1f3c765ffef7ec7fb5fcb758',
         ], $request->body());
     }
 
@@ -93,7 +92,6 @@ public function testGetRawBody()
         $this->assertSame([
             'PaymentId' => self::PAYMENT_EXTERNAL_ID,
             'Amount'    => self::PAYMENT_SUM_FORMATTED,
-            'Currency'  => self::CURRENCY_FORMATTED,
         ], $request->getRawBody());
     }
 }
diff --git a/tests/database/seeders/PaymentSeeder.php b/tests/database/seeders/PaymentSeeder.php
index 3fe49ac..fd28e30 100644
--- a/tests/database/seeders/PaymentSeeder.php
+++ b/tests/database/seeders/PaymentSeeder.php
@@ -11,12 +11,13 @@ class PaymentSeeder extends Seeder
     public function run()
     {
         RequestPayment::create([
-            'id'         => TestCase::PAYMENT_ID,
-            'type_id'    => TestCase::MODEL_TYPE_ID,
-            'status_id'  => TestCase::MODEL_STATUS_ID,
-            'sum'        => TestCase::PAYMENT_SUM,
-            'currency'   => TestCase::CURRENCY,
-            'created_at' => TestCase::PAYMENT_DATE,
+            'id' => rand(1, 99999999),
+
+            'type_id'   => TestCase::MODEL_TYPE_ID,
+            'status_id' => TestCase::MODEL_STATUS_ID,
+
+            'sum'      => TestCase::PAYMENT_SUM,
+            'currency' => TestCase::CURRENCY,
         ]);
     }
 }