SOME 250 National Union of Public Service and Allied Workers’ members marched on two government departments in Pretoria to demand a revised salary offer on Tuesday. Nupsaw, which claims to represent about 65000 public servants, is demanding a 10% increase, compared to an offer of 5,7%.Other demands included an unconditional moratorium on retrenchments, and “transformation in real terms”. Failure to respond to the memorandum by Thursday, the union said, would result in workers embarking on a strike.