Https://official-lufthansaair-helpguide.neocities.org/en/us/15-best-ways-to-reach-singapore-airlines-customer-service-for-refunds-and-cancellations/ https://official-lufthansaair-helpguide.neocities.org/en/us/15-best-ways-to-reach-singapore-airlines-customer-service-for-refunds-and-cancellations/