Everyone who dreams about platinum blonde hair is absolutely petrified of ending up with yellow instead. I agree, it doesn’t look good.
It still happens from time to time that hairdressers don’t dye or highlight their client’s hair properly and the hair may turndye or highlight a couple of hair washes.
You can get it right at home taking only a few minutes.
Just re-colour your hair with colour no. 9 or 10 pearl blonde (violet).
e.g.: Wella Koleston Perfect 10/8 (10P) + Color Touch Emulsion 1,9 %
Mixing ratio: 1:2.
Apply on wet hair and wash it off after 10-15 mins.
I do guarantee that you will have a beautiful shade afterwards.