Ok, so if they’re unallocated they would be saved to the client’s account and show as a ‘Prepayment’.
If you view the client in question, in the top right hand corner, you’ll see something like this:
Whenever you tag a payment against invoices that is less than the payment value, QuickFile will save the balance here for you. This can be used by clicking the “Log Payment” button on an invoice, and ticking the “Apply from credit” button, which in turn, either reduces the balance of the invoice or pays it off and holds the remainder on account.
If you want to view a complete breakdown of these prepayments (e.g. a list of clients with them, or what was paid when), there are 2 ways to do this, which is outlined here.
I hope that helps!