if you have a custom domain, you can set it as per your preferences.
@Lubos maybe able to do this directly for you. If not:
create a new cloud account with your desired login
Back up the data from your old cloud account
Restore it to your new cloud account
Cancel your old account and pay for the new account
I don’t have a custom domain
Please do so and upload
@namfua please send email to
I understand you but I have already pay for old iCloud account for namfua.manager.io with your suggestion it means I have to pay for double domain which is not possible.