I've dyed my hair a couple of days ago,its red but I want to go a pillar box red,my natural hair colour is dark brown,but I don't really want to bleach my hair.

Bleaching, dying or perming your hair too soon after the last time you did may cause your hair to gum up like cotton candy. I think you have to wait 2 weeks or a month. I hope someone that knows for sure and can answer your question about shades answers your question.