Lindex - Sequence of Orders Filled problem?

Is there a way to know if an open order in cue will get filled in the order that it was placed or is there a secret priority on certain accounts where the order gets filled before orders with the same buy or sell rate?

I have been watching the daily volume exceed the total open orders amount at the time when I placed the order but my order has not hit as of yet. It has been 3 days which is very unusual. Much more money has rolled over at the same rate as the open quantity since then.

Any input is appreciated.

I trade heavily on the Lindex, and as far as I can tell, they get filled in order by price slot. If someone puts in an order at a better price, that gets priority. The data is a bit confusing, since daily volume is the total of all trades, buy and sell. My experience is the sell side takes about 2-3x the order volume in total transactions to clean the queue. For example, on my last completed sell trade:

Order placed @ 13Dec 05:33, with 70.47M at the sell price (259) in the queue
Order completed @ 15Dec 13:30, or 2.33 days.

On those days the volumes were 75, 97, and 74M, so total trading while my order was in the queue was 196M, or 2.78:1.

The rest of the trades on those days were limit buys rather than limit sells, and orders placed at a better price.

If you look at the Ninjaland data, you can see hour by hour how many orders there are at the various prices.

http://ninjaland.net/tools/lindex-market-data/

thanks for the tip