I cannot change my Koofr account email address. Why?
If you are unable to change your account email, it's likely that you have recently updated your account email address. After creating a new account or changing your account email, there is a period during which a new change cannot be made. Your email address can be changed once every 90 days.
For promotional lifetime accounts, email address changes or account transfers are not possible. Once you've applied your lifetime code, neither email changes nor transfers are possible.