As the others have said, I think this is pretty unlikely. I had a small rise after second year, in line with what everyone else was receiving, but apart from that I don't think there's much room for manoeuvre. The only thing that I have benefited from is leftover funds from other projects that my sup is in charge of- she used leftover cash at the end of a project for funding a conference trip to the US for me last year and is paying for transcriptions of interviews for another of her PhD students out of that money as well. I'm not sure whether this is dodgy practice or whether it's acceptable to use leftover cash for something else, but I wasn't going to enquire when I has a trip to the states planned! Best, KB