Flight Centre, one of Australia's biggest travel companies with 800 outlets, has taken SIA off its list of 40 preferred airlines, and told staff to stop promoting the Singapore carrier to clients.

A Brisbane-based spokesman confirmed this when contacted by The Straits Times, but would not verify reports that the company is upset because SIA has refused to increase its 5 per cent commission on ticket sales.

Read the full report in Tuesday's edition of The Straits Times.