Sorry a bit more info is required. What miles are you planning on using? KF miles? LH M&M miles? What booking class in Biz are you ticketed in Z, D, J, C? Are you trying to use the Star Alliance Upgrade Award facility for that?
I am travelling Thai and would like to upgrade to biz using Krisflyer miles. I am sure there is a thread to tell me how to do it but I saw this thread instead. Can anyone advise how I need to do this?
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