for that your gonna need to to contact Support DIRECTLY
and prove owner ship of your account and games
open a support ticket or contact Ubi support for your region
you can open a support ticket with Ubisoft Support at https://support.ubi.com
or try to contact them via social media to see if they can update your ticket
Facebook: https://www.facebook.com/UbisoftSupport
Twitter: https://twitter.com/ubisoftsupport
for Uplay Account Support you can try to contact them by Phone
you can find phone number\ support options \ and support hours information @ https://support.ubi.com/en-GB/Contact#en-gb
if you have an account problem call em on the Phone or use twitter or facebook are the fastest options or WEBCHAT
here are the twitter and facebook links
Facebook: https://www.facebook.com/UbisoftSupport
Twitter: https://twitter.com/ubisoftsupport