True but actually this is not the full picture. It's not only to create the false impression of good sales that agents ask for the cheques whether one decides to buy or not. Remember, for every successful sale, they get commission. No cheque means confirm they got no sale. With a cheque, buyers who think they may not buy before the official balloting day could change their minds last minute.
It's a well-known fact that property is a dirty game. To do well, agents usually resort to telling half truths to their clients, try underhand tactics like mass booking units and selling them off later for "under table" money, backstab other agents, etc. I have a colleague who became a part-time agent. He lives in a HDB flat and earns only a few thousand $ from his day job. Within less than a year of work, he could pay full in cash for a car. But he quit after that cos he is an honest chap. Said it is not his character at all to do the dirty stuffs to be successful in this line and he would rather not earn that kind of money.
I have not heard of any returned IR units cos I did check with Huttons. If you see any now, it's all undertable type of mass booking. Actually, the mercy is not on the buyer but the agent. If they can't find a buyer, I was told they will lose all their booking deposit. But they tempt you with pre-booked units, and the choice is up to you: Pay thousands of $ commission to the agent and get your unit, or the unit will be returned to the developer who will sell it even higher. If you are an upright person who wants to boycott such tricks, then don't buy from such agents. But if you are desperate to have the unit, you really have no choice. The agent who is at your mercy, now turns around and you are at his mercy instead.
The above is what has been happening to CG Danga Bay.