Ok fellow in Asian office clarified. The limit is being imposed...

Ok fellow in Asian office clarified.

The limit is being imposed by the asx, nothing to do with IB rejecting the order but the asx is limiting total open position value for accounts under 20k. Have more in your account and that moves you up a tier. Whether there is then a chance of clients with that balnce exceeding or not you have no wy of knowing.

So the number of contract you have open has no bearing but the TOTAL POOL of all traders.
They have either lowered the limit or more ppl with accounts < 20k are trading.