Identification And Reference Document At Check-in

Recently I booked a return ticket for my daughter PEK-MEL-HKG-PEK using MY credit card. In the E-ticket, it is stated that my daughter would have to show picture identification and document you gave for reference.  With the picture identification, that is not a problem.  But she will not be able to show them my credit card as I am in MEL and she is leaving ex-PEK.  Should I scan her a copy of my credit card and the bank-credit card transaction when I purchase the ticket. Please kindly advise.   Sincerely, eunice