diff --git a/src/Gateways/AbstractGateway.php b/src/Gateways/AbstractGateway.php
index 831d531..3829d9c 100644
--- a/src/Gateways/AbstractGateway.php
+++ b/src/Gateways/AbstractGateway.php
@@ -697,7 +697,7 @@ public function process_refund( $order_id, $amount = null, $reason = '' ) {
 		$request = $this->prepare_request( $txn_type, $order );
 		$request_args = $request->get_args();
 		if ( empty( $request_args[ RequestArg::AMOUNT ] ) ) {
-			throw new Exception( __( 'Refund amount must be greater than zero.' ) );
+			throw new Exception( __( 'Refund amount must be greater than zero.', 'globalpayments-gateway-provider-for-woocommerce' ) );
 		}
 		$response      = $this->submit_request( $request );
 		$is_successful = $this->handle_response( $request, $response );
diff --git a/src/Gateways/Handlers/PaymentTokenHandler.php b/src/Gateways/Handlers/PaymentTokenHandler.php
index 827c6d4..8529a26 100644
--- a/src/Gateways/Handlers/PaymentTokenHandler.php
+++ b/src/Gateways/Handlers/PaymentTokenHandler.php
@@ -6,8 +6,8 @@
 
 class PaymentTokenHandler extends AbstractHandler {
 	public function handle() {
-		if ( ! $this->response->token ) {
-			return;
+		if ( empty( $this->response->token ) ) {
+		    return;
 		}
 
 		( new PaymentTokenData( $this->request ) )->save_new_token( $this->response->token, $this->response->cardBrandTransactionId );