No, you will not be able to determine the amount at this moment of time. The system will automatically deduct up to the entire amount of the Invest Voucher before deducting from your cash balance. If the subscription amount or buy trade order amount is smaller than your Invest Voucher value, the system will deduct only the required amount.
Can I select the amount of my Invest Voucher I want to use for a subscription or buy trade order?
