Either you cash the property now or you walk away from the deal & forfeit the deposit. The interest amount on your purchase is probably quite high already and soon to be almost the same amount as your deposit.

Auction is not for the weak. To be honest, the Developer or the Bank has no obligation to act hurriedly for you. If they act hurriedly it is out of goodwill. By right if double transfer, you have been ready to pay the property in cash in the first place by the time 90 days have arrived