If you decide to cancel the sale after winning the bid, the bank will not refund you the deposit.
Even with good reasons such as
1. Bumi lot (unable to transfer title to your name)
2. Caveated unit (unable to disburse the remaining 90% via loan)
3. Developer under liquidation (lawyers unable to process the documentation within the time frame)
And any other reasons you can find.
Do consult us before participating in any auction unit as we will help you uncover these details and advise whether it is safe to proceed or not.