The Estate Agents Authority will try to block a 'leak' that is leading to people who have just bought flats being deluged with calls from agents asking if they want to resell.
Authority chairman Steven Poon Kwok-lim said yesterday that many recent buyers received 'cold calls' about reselling almost as soon as the ink was dry on the deal.
'It is a leak of information,' Mr Poon said. 'Some people might be disturbed by such calls as I know some buyers received more than one call a day.'
The authority will issue a new circular reminding estate agents to take information security measures to protect the privacy of buyers' data.
Mr Poon said that although there was no sure way to stop the nuisance calls, the authority would closely monitor the situation.
Authority chief executive Sandy Chan Pui-shan said the agents should stop calling the buyers if they were told they were unwelcome.
'If a person said he or she is unwilling to receive the call again, the agent should cancel that number from the company's contact list to prevent colleagues from calling,' Ms Chan said.