Best for toning down.

[blairharvey]

i had a slight brassy look to some parts of my blonde, and decided to put a toner the fudge 'pale shade of snow' but i feel i have left this on too long and have parts very white, where as the rest is a lovely gold based blonde, what would be the best thing to do to tone these ultra blonde parts down to a more natural light blonde!!?

Thanks in advance... im lost with this one!!