Highlights gone wrong...what can I do?

Last night I highlighted my hair using a Jerome Russell b blonde kit for medium to dark brown hair. I'd previously been colouring my hair black but not for about 3 months. The highlights have gone a gingery colour, I left the mixture on for 90 mins which was maximum development time, the mixture was peroxide and powder bleach. It doesn't look hideous but I want it lighter and not so orange. Would a toner work and how long would I have to leave it to put more highlights in?