diff --git a/simpay-woocommerce-payment.php b/simpay-woocommerce-payment.php
index fc53587..b57dda6 100644
--- a/simpay-woocommerce-payment.php
+++ b/simpay-woocommerce-payment.php
@@ -3,9 +3,11 @@
  * Plugin Name:       SimPay.pl Płatności Online WooCommerce
  * Plugin URI:        https://simpay.pl
  * Description:       Wtyczka WooCommerce, która umożliwi Ci przyjmowanie płatności Online
- * Version:           1.0.0
- * Author:            Patryk Vizauer
- * Author URI:        https://github.com/PatryQHyper
+ * Version:           1.0.1
+ * Author:            Payments Solution Sp. z o.o.
+ * Author URI:        https://simpay.pl
+ * Developer:         Patryk Vizauer
+ * Developer URI:     https://github.com/PatryQHyper
  * License:           GPL-2.0+
  * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
  * Text Domain:       simpay_woocommerce_payment
@@ -49,5 +51,3 @@ function simpay_woocommerce_payment_block_assets() {
 		true
 	);
 }
-
-//simpay_payment_gateway
\ No newline at end of file
diff --git a/src/SimPay_Gateway.php b/src/SimPay_Gateway.php
index 73d858a..6c8fed9 100644
--- a/src/SimPay_Gateway.php
+++ b/src/SimPay_Gateway.php
@@ -34,7 +34,6 @@ public function simpay_handle_ipn() {
 		return ( new SimPay_IPN_Handler() )->handle(
 			$this->get_option( 'simpay_service_hash' ),
 			$this->get_option( 'simpay_service_id' ),
-			$this->get_option( 'simpay_bearer' ),
 			$this->get_option( 'simpay_ipn_check_ip' ) === 'yes',
 		);
 	}
diff --git a/src/SimPay_IPN_Handler.php b/src/SimPay_IPN_Handler.php
index d98a29f..8f5047b 100644
--- a/src/SimPay_IPN_Handler.php
+++ b/src/SimPay_IPN_Handler.php
@@ -5,7 +5,6 @@ class SimPay_IPN_Handler {
 	public function handle(
 		string $serviceHash,
 		string $serviceId,
-		string $bearerToken,
 		bool $validateIp,
 	) {
 		if ( $_SERVER['REQUEST_METHOD'] !== 'POST' ) {
@@ -42,6 +41,10 @@ public function handle(
 			$this->error( 'invalid signature' );
 		}
 
+		if ( $payload['service_id'] !== $serviceId ) {
+			$this->error( 'invalid service_id' );
+		}
+
 		if ( $payload['status'] !== 'transaction_paid' ) {
 			header( 'Content-Type: text/plain', true, 200 );
 			echo 'OK';