Oh my lordy me....it's raining miles & miles

As mentioned earlier in this thread I had already noticed that I had been awarded double the number of miles on my Jan statement for no apparent reason, as I haven't made any purchases from the "double miles outlets" (Sarah - I think this what happened to you?)....here's a paste from my statement
FLYING CLUB MILES
STANDARD MILES 4,872.38
BONUS MILES 4,872.38
TOTAL MILES 9,744.84
......and here's a paste from my FC account >>
31 Dec 2006 VAA Credit Card Spend 5,794
31 Jan 2007 VAA Credit Card Spend 9,744
31 Jan 2007 VAA Credit Card Spend 5,794
...yep - just as Tauras confirms, we all appear also to have been credited a duplicate of last month's miles. These I'm sure will be removed just as was the case the last time. But what about those showing on my AMEX statement - why have I (and others it seems) been awarded double what we were due? [:?]