as i had an old ubisoft account i could not migrate to ubisoft and because you cant have 2 ubisoft acounts with the same email address i had to
1. create a new email address
2. create a new ubisoft account linked to the new email address
3. using legacy login to tso i migrated to ubisoft using my new ubisoft account( remember to check email from tso to verify your email address before closing tso)
i hope this helps someone