CIVIL servants have demanded that the Government more than doubles the money to be injected into the pension reserve fund to safeguard their payments. The level of injection should not be less than $15 billion, according to government staff. The setting up of a $7 billion fund was promised by the Governor in his second policy speech. Staff representatives of the Model Scale One Consultative Council also rejected the idea that the fund should lie idle instead of being put into low-risk investments. Vice-chairman of the council's staff side, Li Ping-yu, said the $7 billion should serve only as a starting point. In a meeting yesterday with the Secretary for Civil Service, Anson Chan Fang On-sang, they said the amount was insufficient. They hoped the fund could gradually be built up to at least $15 billion - enough to safeguard three years' pension payments, he said. Mr Li said officials had indicated that previous consultative documents had said the same amount would be required to make the fund workable. He said they had asked how the figure of $7 billion was worked out, but officials had offered no explanation.