Good suggestion - it used to be that you didn't get any bonus cards with Cent but now they are allowing you to pick up a plat (or gold?) for next to nothing. While the bill is linked to your Cent card, none of the benefits apply, ie: warranty issues, etc. If you use a gold (or plat) you get the benefits associated with that card, even though it is on your Cent account.

I suppose that your point is that the Plat is 90% of the Cent, so why not just use that? It's a good suggestion. Still wish that they would let you get a plain "green" one as the stealth Cent card...