AccountCredit?

 
Can someone please explain what AccountCredit() function does? Yes I have read the documentation and I have no idea what the credit value of the account means. Please explain.
 
Anyone?
 

Yeah, its just for if the broker gives you money back. Like promotions, "Open account with us and we'll deposit $10-USD in your trading account". Use that function to get total amount of Credits broker have given you. At least that's what I think.

Added: Here's more for ya.