because I dont want it there in case they get hacked. why do they need to keep it? Why cant I just type it in every month to pay, I know it off by heart. Why does it bother you? Strange.
If this really is a one-time bonus, it's not really great incentive to refer anyone. Not many people I've asked have any interest whatsoever in a one-time bonus. I'm on the 3 month/4GB plan, and I really don't have enough data, but a one-time boost...