Thank you all for the replies!
So I understand it is not a straightforward business then? I dont understand how we, as operators, cannot ask what comission the broker charges us? how i am supposed to make sure the end client gets always the same price from us whether via broker or not?
This particular broker has been very very rude in their way of addressing via email... The bottom line is, if the broker is going to charge me a fee, how come they get insulted if I ask them what the fee is??