What to do when Balayage goes WRONG - Ash blonde on brunette tutorial with formulas

Hey Everyone! its been a while and im so happy i get to show you all a really interesting service today. balayage can go wrong, and at times i find that ive messed up in a way that forces me to get creative when i do not have additional time on my side. this video captures some mistakes i made in my service and im happy to show you all how i was able to work with toners to fix what happened. ive learned from it and i hope you all get to as well!