Ginger to blonde

[njrivett]

Any suggestions please, I've a client coming in tomorrow, her base shade used to be 6/0 with bleach blonde hilights, she decided to apply a light ash blonde box colour all over, her base is now about a koleston 9/03 with the hilights a very ashy colour, she wants to get rid of the 'Ginger tinge', I'm thinking of putting a 10/1 with 20vol on, any others ideas please