What i'm guessing is this:
SMB189A - SMB354P (166 buses)
SMB3001M - SMB3034T (34 buses) which add up to 200 of Batch 1... while
SMB1301K - maybe
SMB1434K
(134 buses)
SMB3035R - maybe
SMB3100K
(66 buses) which add up to
200 of Batch 2...
so, maybe these are the 400
A22s? 
Still not enough to cover all, Seriously the big problem lies
with AMDEP who up til now doesn't make any effort to take in any of
it.
Let's hope they get the Citaro C2 and hope things can go
better.