public static function remove_coupon() {
		check_ajax_referer( 'remove-coupon', 'security' );

		$coupon = isset( $_POST['coupon'] ) ? wc_format_coupon_code( wp_unslash( $_POST['coupon'] ) ) : false; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

		if ( empty( $coupon ) ) {
			wc_add_notice( __( 'Sorry there was a problem removing this coupon.', 'woocommerce' ), 'error' );
		} else {
			WC()->cart->remove_coupon( $coupon );
			wc_add_notice( __( 'Coupon has been removed.', 'woocommerce' ) );
		}

		wc_print_notices();
		wp_die();
	}