hello FTers

I have a ticket booked in D class from AKL-HKG-TPE, i do want to try the F service on the HKG-TPE sectors, however, AKL-HKG does not offer F...

I searched the forum, and the answer is that i need to pay fare difference, since first class is not offer on AKL-TPE tickets, there is no fare to calculate the difference for F..... and im a QFF member, not CXMP... so no mileage upgrade too....

Anyone would know if i can upgrade myself at the airport, and if so, what would the rate be like?

Thanks in advance.