The UK recruitment market is a mature, competitive landscape. The focus of most recruitment businesses is on developing market share. Once you have been given an opportunity to work with a client (new or longstanding relationship) the goal has to be to fill the vacancy. Both you and I recognise that not every job that an agency is given is successfully filled (by them). Sometimes a competitor recruiter might fill it, or the position may be withdrawn or cancelled. Some recruitment business will actually fill less jobs than they don’t.