Bad broker!!!
Bad platform!
They work with Farr Financial and PMB (now bought by Refco)the worst brokers...
You can send more contracts you really can and the system accepts them. And you don't recognize it soon!!!
So, if you can trade only 5 contract and send 2 orders : 5 and again 5 because seems that the first does'nt filled , the system stops to work but has accepted 10 contracts ! You see it after minutes and you have to call DT to cancel or close .
Incredible!