LP got a letter from discover says that she can get $500 bonus if she spend
$3000 per month from 9/01/2010 to 1/31/2011. I called discover to ask for
the same promotion and was told only the one who got the letter can sign up
this promotion. But they signed me up for another promotion: get $50 bonus
if spend $1000 in next two months. For the promotion "$20/20 transactions
for existing cardholders", discover CSR says I cannot get both promotions.
Anyway, $50 extra cashback works for me.