Hilton HHonors - Stay Credit when I never stayed??

Scenario:
In the beginning of Jan 2009, I made a rewards reservation for Hilton Arc in Paris for MAY 2009.

Confusion:
I just noticed my HHonors point total is higher than I anticipated. I looked at the HHonors Activity and see the following:
AMEX CO BRAND 1ST 4 STAY BONUS - Hilton Arc De Triomphe 2,500 0 18-Feb-2009
MYWAY PREFERENCES BONUS OPTION - Hilton Arc De Triomphe 1,000 0 18-Feb-2009
Base Points - Hilton Arc De Triomphe 128 0 18-Feb-2009
Q1 DOUBLE POINTS OFFER - Hilton Arc De Triomphe 128 0 18-Feb-2009
50% BONUS ON BASE POINTS - Hilton Arc De Triomphe 64 0 18-Feb-2009
GOLD VIP BONUS - 25% 2009 - Hilton Arc De Triomphe 32 0 18-Feb-2009

I looked at my Hotel Stays Summary and see the following:
Hotel Name: Hilton Arc de Triomphe Paris hotel
Dates: 14-Feb-2009 - 16-Feb-2009
eFolio Receipt: Not Available

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128 base points seems rather low for any actual stay at this property. I thought maybe they were charging me tax or something for my reward stay, but I don't see any charges on the CC I guaranteed the stay with.

Anyone have any ideas as to what's up? Yes, I can call HHonors, but I don't want to take a chance on them screwing up my reward stay in May or anything like that.

They probably put your account number by mistake on somebody else's reservation.