Hey Brett. Really sorry to hear about the shit your going through. I really gope u get to keep your son you obviously love him a great deal more than the ex. what sort of creature wouldnt even sebnd a b.day or x.mass card to their own 4yr old son? Hopefully when it all pans out karma will come back and bite her where it hurts. all the best mate i hope you and your boy can move on and keep smiling.
regards Brendan