How to suspend an amount to be refunded?

ScoutTreas

We used a 'Load&Go' card, provided by Australia Post. It's the sort that you load up with value and then use in the same way as a debit card. For us, it's like the Petty Cash tin. The card has expired and the balance has been cleared. We can claim that balance back, which we may do, or write it off. I've worked out now how to account for a write-off, but what kind of account do I open to suspend the value in the case of us requesting and waiting for a refund. I need to bring the "Load&Go" account to zero to reconcile at the end of the financial year (today).
Thanks!!!