I wasnt aware you could buy scanners with admiral tokens. yes you can buy credits but it would cost you a hell of a lot of money to get enough for a scanner!
As for the ship, its not different to the other ship you can buy with normal credits.…
Whats all this got to do with credit cards? its a good way of getting money to the coders. and the use of a credit card does not help you invade a colony.