Those are easy process
I probably link and unlink 5+ accounts per week... it is not that hard... I made few videos about and there is also a lot of step by step on how to do on uo.com
you CANT do by yourself, support need to be involved for "security" reasons
People need to understand that you have
Origin/EA account (with a secret question)
and you have eamythic account (this one Holds your UO Account) and also have a secret question attached (normally is Mothers Maiden name, Favorite pets or place of Birth).
To unlink an account, you must email
[email protected] and asking for it, They will send an auto email, that will contain the Ticket #, than the second email will be from actual support people, asking for the secret question and they will give you a hint, REMEMBER, Whoever OWNS this information, OWNS the account, no matter if someone gave you the account, if you bought the acc 10 years ago or anything, if you dont have this information, you will NOT be able to unlink.
The most important information that 90%+ of the people DONT know, is that there is a 3rd password that you need, in order to link the account back, THIS password you can ONLY reset AFTER the support unlink your account and you NEED this in order to link back your account to another email.
This password can be RESET by clicking the option as I show on the picture
by clicking this link, it will ask the name f the account that you want to reset the password to link back the account, you must type the name using the _uo at the end, like
accXXX_uo , by doing this , you will receive an email to reset (the original email where the acc was linked b4).
again, if you have any question, just PM.