Redirect after card delined

Hi Team,

I’m having issues with Stripe declined cards as the delivery fee gets $0 after a card is declined. The user can then pay again for $0 delivery with the correct card details.

I wish to redirect users to a different page when a card is declined.

I already tried the following code but the page doesn’t redirect. Just shows this error: https://ibb.co/cTzjvLm

function stripe_redirect_declined_card( $order_id ){
global $woocommerce;
$order=new WC_Order($order_id);
     if ( $order->has_status( 'failed' ) ) {
       header('Location: https://domain.com.au/failed-payment/');
     }
}
add_action( 'woocommerce_thankyou','stripe_redirect_declined_card',10,1);

Could someone please assist me in this regard?

Cheers