Online TRAP of Srilankan Airlines

Beware the trap if you purchase your airticket online at the website of
Srilankan Airlines. They,ll send you a email as the e-ticket, condition
is come arcoss with the e-ticket, but not mentioned you have to bring
along with the credit card that you used to purchase the airticket.
This requirement only appeared as a single line of text in one of the
step during the progress of your purchasing in their website. I didnot
see this term caused the airlines staff not issuing the boarding pass
to me, I cannot made refund as they said airticket is nonrefundable.
Angry.....................................