I used 3 different rewards to get our 4 nights covered. If I understand it right I need to buy $5 in chips to get a 4th reward. Also, even though my trip is 60 days out I can only use those 3 or 4 rewards within a 30 day span, not when I purchase them but when I use them? In other words, even though I've already booked the rooms now, they are considered used when I go out there in July so if I want to get a restaurant reward to redeem when I get there I need to buy chips to get the 4th reward. Do I have this correct?