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https://support.openlms.net/hc/en-us/community/posts/16169049959580–%E1%8F%95%E1%8E%A5%E1%8F%81%E1%8E%B6%E1%8E%B6%E1%8F%97%E1%8E%AE%E1%8E%A7%E1%8F%92%E1%8F%8B-LIVE-Flight-Change-POLicy-for-Singapore-Airline-full-support-Hurry-UP