I know people will point to the promise made in 2003 but that was before the massive over expenditure on the project occured.
But the thing is who was in charge of the expenditure? The DAA of course
They were the ones who overspent on the new terminal, the CAA had very little to do with the spending. Yet while the DAA were happy to spend money, they want the CAA to fork out for overspending that had little if anything to do with them.