Reviving this thread once again since I also had to deal with some of the issues mentioned above.
Booked ARN-DOH-HKG rt with my German VISA, received a mail asking for payment verification one day after. Even though this was a waste of time and caused hassle (and I don't even get their point in requesting these things) I filled in and uploaded everything I was asked for, including passport, original credit card statement from Barclaycard.
Now I received QRs answer:
Thank you, however the card statement provided is not suffice to complete the credit card verification
Since the cardholder is also the passenger, you may verify your card at time of check-in, just ensure to carry your credit card on you date of travel
This is really getting on my nerves. Does it mean that I have to be present at QRs check-in desk to show my card once again and go through the process as described by NetJets Germany? Would be very helpful being able to at least finalize the online check-in in advance. Any experiences here?