I said this on the other board. I have all classes some in and some out...
"Mine say NA in one area, but if I go onto the "Accounts" under History & Statements it has "VOLUNTARY - EXCHANGE OFFER " then some numbers and then it will have IN or OUT and more numbers. Mine are accurate, but that NA did cause me to pause for a bit too. "
My account shows the same. It means your ballot has been received and your shares are locked. My account has been this way for 3 weeks for all WAMU classes other than DIMEQ. They'll change when it's appropriate to do so. No worries, imo.