Hair Bleach...possible disaster

[CandyCaneCaz]

Bleached my hair the other night and I have some yellow tinged roots. Any advice?
Have already tried purple shampoo and it made the blonde parts platinum but still have yellow. Please help!

All i can suggest is to go over the roots again, or get sopmeone to do it, i use Jerome russell, you can get the peroxide in low strengths, with bleach powder
I do my own with it,or maybe get some of something like sun in, and just spray the roots