PBL'S Crown Casino in Melbourne and its Burswood Casino in Perth will be used to guarantee a bond issue to help prop up the price of listed US company Melco PBL Entertainment (Macau), it emerged yesterday. James Packer's company plans to raise up to USD 250 million (AUD 290 million) in exchange tradeable bonds, as part of a move to to bolster the price of the Macau company, which has been badly hit in recent weeks by visa restrictions being imposed on gamblers by the Chinese Government.