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https://central.xero.com/s/question/0D58V00009OxODVSA3/singapore-%F0%9D%99%B2%F0%9D%9A%8A%F0%9D%9A%97%F0%9D%9A%8C%F0%9D%9A%8E%F0%9D%9A%95%F0%9D%9A%95%F0%9D%9A%8A%F0%9D%9A%9D%F0%9D%9A%92%F0%9D%9A%98%F0%9D%9A%97-does-singapore-air-have-a-24hour-cancellatio