Colour Grading

We have filmed 3 demonstration videos on the white background with very even lighting. I post there are yellow tint in the shadows and blues in the highlight. What I want is perfect white on the background and her clothes.

This needs to be exceptionally well polished. (examples are welcome)

This is the video completely ungraded. https://vimeo.com/156533710 - password silvercross

Thanks,

Paul