I am currently in the process of getting my work visa, any day now! but in the mean time i have had to get a new passport as my old one runs out in may. When i applied my new employer said lets apply with your current passport (old one) and if the immigration says anything we will sort i out. so far nothing has flagged up, even though my old passport has been cancelled now. what im worried about is turning up and being refused entry cause its essentially a different passport. do i transfer it it before i leave the uk?