Recover Yahoo user's lost contacts & notes

A Yahoo user has reported that ever since the Yahoo website change around Christmas he has lost all of his contacts and notes.

I have verified that his contacts and notes are both empty.

What do we need to do to get his contacts and notes back within Yahoo? He reports that he has 10 years worth of data stored within the Yahoo contacts and notes and we can't afford to loose this data.
IT GuyNetwork EngineerAsked:
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Andrew LeniartFreelance Journalist & IT ConsultantCommented:
If the user has always just used a browser to store and access his mail and contacts, only Yahoo support will be able to assist you with this.

Do not fall for the trap of any website that claims they can recover his data for a fee.  ONLY Yahoo support themselves can help. Any website claiming differently will most likely be a scam site or simply contact Yahoo support on the users behalf for a ridiculous fee.

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Andrew LeniartFreelance Journalist & IT ConsultantCommented:
Further to my last, try contacting Yahoo support with this link...
>>> "ever since the Yahoo website change around Christmas" <<<

Have you looked to see whether there is a link or button to "revert to classic" or something similar that would allow you to load the previous layout?  I have experienced this type of thing in the past when yahoo "updated" their layout and functionality, but reverting temporarily to the previous version allowed me to export the details I needed.

Jackie Man has suggested the same thing in your other almost identical question:
Thank you Knowledgeable
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