If you want to change the balance of funds you have available to trade without making a deposit, you can try to restructure your portfolio by making transactions. However, if you have made transactions that do not sufficiently impact the risk in your portfolio, the balance under 'Available to trade' will not or barely change.
In the case that one or more transaction(s) has(/have) not lead to the desired change in how much you have available to trade, please revisit our Risk Handbook and the ISI - Security Value, Risk, Debit Money, and Debit Securities for more information on how the risk and 'Available to trade' in your portfolio are calculated.
As an Execution Only broker, we are unfortunately unable to assist you with determining the risk in your portfolio and/or advise you on which (trans)actions to perform.