https://www.vietnamairlines.com/my/en/help-desk/common-topics/Lotusmiles/dung-so-the-BSV-de-mua-ve-cho-nguoi-khac
Vietnam Airlines | Use my Lotusmiles card number to buy tickets for someone else
https://www.vietnamairlines.com/se/en/help-desk/common-topics/Lotusmiles
Vietnam Airlines | Lotusmiles
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