yep, these are the only two entries i have deducting stuff:
09/29/2011 Reward 1 Night, Category 4 Hotel -20,000 pts
09/28/2011 Reward 3 Nights, Category 4 Hotel 0 pt

dont know why it says 3 nights, it was 3 total - i only had two certs, so cant be anything else. They disappeared from account and then appeared back....