When you are quoting to make a booking with consolidated product of Travel Compositor, these are charged towards a consolidator balance that you have in your account.
When this consolidator balace is insufficient to complete the booking you will see during the booking process this message:
You must top up tou balance in order to continue making bookings.
If your consolidator balace is 50 or less the consolidated providers will not give any availability at all.
Please also take into consideration that the system will not consider deferred payment amounts, you will have to have 100% of the balance to complete the booking, even though you have part of those services to be paid in the deferred payment second instalment.