Lately I've been reading a lot about people who are asked for the VISA card with which they bought the flight when doing the check in. In these situations they are not allowed to board. Many of these people complain because they didn't have it. This can happen in several situations: you got the trip as a gift, the company bought the trip, etc.

Currently several banks/financial companies started offering virtual credit cards over the Internet. That means there is no actual physical card, only a number.
If you want to use it, how would one proceed if asked for the card? Would they ask for it even if the card is in your name?

A first person testimony who was not allowed to fly because he didn't have the company card (it's in portuguese):
<http://www.fmgomes.com/impedido-de-embarcar-num-voo-emirates/> - [Google translation to english](https://translate.google.com/translate?hl=en&sl=pt&tl=en&u=http%3A%2F%2Fwww.fmgomes.com%2Fimpedido-de-embarcar-num-voo-emirates%2F)