<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by ScottC:
Another gamble is to book the 2 that are open, then keep looking for the third, it's quite rare that people book 3 awards for F so I presume that is why BA make them available in pairs, when the 2 available are gone that might trigger them to open up 2 more...</font>
ScottC may be right that a third seat may never open up so long as two still are available. Since it sounds like you're unwilling to take a risk with two, calling the EC will be your best bet. And call every day (or multiple times a day) until you get the right answer.