Hi, sorry if this has been covered elsewhere.

I have booked 3 x DONE4 routing LON - HKG - AKL - LAX - LON. Two of my colleagues are travelling after me. I am travelling ahead of them to explore HKG and NZ. I have paid for all three tickets on 2 separate bookings. The page after payment says that while the card holder needn't travel, the card needs to be presented. As when my colleagues leave a week after me, I will already be in NZ, how do I cover this? Do i give their booking reference when I check in?

Secondly, when does the issuing airline actually take payment and issue etickets? I have had confirmations for both bookings, but can't see etickets for them.

Thanks in advance

Edited to add detail - First booking for my colleagues was made 3rd Feb, mine was booked today.