3 core electric wire (Droylsden M18)

Hi there I'm trying to put wall lights and add a extra socket to bedroom.ive moved in to partners flat and im trying to make the place look nice but im in need off help if anyone has spare wire so I can aim to get things done.words can't say how greatfull i would be if I can get help to enable the ideas have for bedroom I've managed to get two wall lights and a socket im just in need off 3 core wire if you can help me out please message and I will contact you back many thanks