Tycoon Joseph Lau Luen-hung said he was asked to pay a $200 million 'separation fee' by a former lover, according to reports yesterday. Although he did not name the woman, it is believed to be Rosaline Wong Wing-yue, daughter of the former chairman of the Equal Opportunities Commission chairman, Michael Wong Kin-chow. Mr Lau also rebutted claims Ms Wong made about her relationship with him in a Commercial Radio interview on Tuesday. Mr Lau called a press conference on Thursday but forced reporters to sign a confidentiality pledge which effectively forced them to report only his version of events. Several papers refused, including the South China Morning Post, and were ejected. Mr Lau reportedly said he dated Ms Wong for four years, not six, and during that time he never proposed marriage. Ms Wong claimed he had proposed four or five times and she had rejected him each time. The tycoon denied writing anonymous love letters in newspapers begging Ms Wong to come back, letters which she told Commercial Radio were written by him. Mr Lau said when he rejected the $200 million demand for separation, his ex-lover lowered it to $20 million, which he again rejected. He also claimed Ms Wong spent $100,000 of his money every month to buy bird's nest, along with millions of dollars on jewellery. Ms Wong told the radio station she attempted suicide over her affair with Mr Lau when she was working as an executive for his property company.