Millions of election leaflets due for mailing have been put on hold after random checks found candidates' platforms have been mixed up by mistake. As a result, Rita Fan Hsu Lai-tai greets voters with Hong Kong Island rival Audrey Eu Yuet-mee's platforms calling for universal suffrage in 2007. Ms Eu has Mrs Fan's 'no fear, no favour' catchphrase. The pictures and campaign pledges of Democrats chairman Yeung Sum and Martin Lee Chu-ming were split on different pages. The watchdog last night still could not say how many platforms were mixed up. Nor could it confirm if the first batch of 290,000 leaflets sent out to voters was error-free. In a hastily arranged press conference, the Registration and Electoral Office confessed that the mistake was unprecedented in Hong Kong electoral history. 'We believe it won't have a major impact,' Chief Electoral Officer Li Wing said. 'But such mistakes would affect voters' understanding of candidate's platforms. We apologise for any inconvenience caused.' Officials said the mistakes were discovered during random checks on Thursday, after the first batch had been sent out. But the office said it so far had had no complaints. Subsequent checks on 30,000 leaflets had found 12 with mistakes. They concerned candidates in Hong Kong Island, Kowloon East, Kowloon West and New Territories East. Mr Li said the mistakes apparently happened when the leaflets were stapled in the wrong order. He said it was still uncertain who was to blame, the Logistics Department handled it. Asked if he was ultimately responsible, he said 'yes'. The office is to resend leaflets to the 290,000 voters, costing taxpayers $600,000. Voters who received leaflets with errors should destroy them, Mr Li said. Cyd Ho Sau-lan, running mate of Ms Eu, criticised the electoral office for failing its duty. 'It is a serious dereliction of duty. How can such a stupid mistake take place? Do they have no quality control?' she said. Electoral Affairs Commission chairman Mr Justice Woo Kwok-hing could not be reached for comment last night.