How can i payment two server in my account with two credit card

I Have a linode account and two ubunu server, and i want to pay every ubuntu server with different credit card.

Why? If this is a matter of you billing the charges to separate people, there are better ways to do this (and better software to do it with).

If I was Linode (which I'm not) and someone asked me to do this, my immediate reaction would be "This person is asking me to be a party to a fraud."

-- sw