well if you have a -USD balance you are going to have to buy the $ on the market. Go and read the IB website about currency exchange. they have two gateways to the currency market IDEALPRO for large transactions and IDEAL for small transactions.
you should also read about interest rate spreads...do you understand why you owe that interest?
also, since i'm guessing you are fairly new at this, and i can't stress this enough, KEEP YOUR SIZE SMALL. unless you were holding the positions for a long time, you were clearly taking very large positions in order to rack up that much interest without knowing.
you have to stay in the game long enough to figure out whats going on. set it up so that you are risking no more than 1% of account equity on any given trade.
best of luck
you should also read about interest rate spreads...do you understand why you owe that interest?
also, since i'm guessing you are fairly new at this, and i can't stress this enough, KEEP YOUR SIZE SMALL. unless you were holding the positions for a long time, you were clearly taking very large positions in order to rack up that much interest without knowing.
you have to stay in the game long enough to figure out whats going on. set it up so that you are risking no more than 1% of account equity on any given trade.
best of luck