You cannot currently change the email address on an existing Store account. If you need to use another address, contact Hivenet Support before changing accounts.
If you can still use your account
Keep your working session open.
Save separate copies of the files you need outside Hivenet and check that they open.
Note the registered email, whether you can still access that mailbox and how you sign in, such as with Google or an email and password.
Tell Support which account contains your files and which email you want to use.
Do not send your password, encryption passphrase or verification codes.
If you need a separate account
The available route may involve creating a separate account and uploading your files again. A new account does not automatically take over the old account's files, subscription, billing history or other benefits.
Ask Support to confirm the steps for your sign-in method and how any paid plan will be handled. Keep the old account available until you have checked your separate copies and the new account's contents.
Do not delete the old account, cancel a plan or convert it as an email-change shortcut.
If you cannot sign in
Contact Hivenet Support with the registered email, sign-in method and error. If the issue concerns an encryption passphrase, use the passphrase guidance. Keep access open on any device that still works.