How can I respond as a seller to unfair neutral feedback left by a newcomer to ebay who doesn't know the way feedback is intended to work?

[bluebarb12345]

I sold an item to a buyer who was disappointed with the colour of the garment (item#181124881789) despite the description and photo being accurate, and rather than contact me chose to leave 'Neutral' feedback (anything that isn't 'Positive' is 'Negative' in most peoples eyes I believe)

This buyer has left only 8 feedbacks in 4 years, two of which have been 'Neutral'. (25%)

Having traded since 2002 and accumulated an unblemished 100% 'positive' feedback I am keen to protect the goodwill of my online business and wish to know what options are available to me to have this feedback removed.