Let's say this month I spent $50 with the card. The statement comes at the end of the month with a $50 balance and a $30 minimum payment required. Let's say I redeem my rewards on the card, which brings my $50 balance to $0.
You would think that now that the balance is $0, I wouldn't have to make any payment; but if you look at the fine print, most credit cards warn you that "rewards redeemed as a statement credit are not considered a payment".
So, do I still have to make a minimum payment even though that would bring my balance down to negative dollars?