Every time I try to set up a new seller account, I keep getting an error message saying that I need to use a different email address, or that the email address I’m trying to use isn’t associated with any accounts.
This usually happens when Amazon has already associated your email, phone number, device, or personal details with a previous seller account, even if that account was never fully activated or you no longer have access to it, and the system then blocks you from creating a “new” account because Amazon only allows one seller account per individual or legal entity.
The confusing part is that Amazon sometimes tells you to use a different email while also saying the email isn’t associated with any account, which is just a symptom of their internal linking checks failing in the background.
The correct way forward is not to keep trying new emails, as that can make things worse, but to contact Seller Support or Account Health and ask them to help you regain access to or formally close the old account, or to merge your registration into the existing account on record.
You may need to submit identity documents to prove ownership and request a password reset or account recovery, and once that’s resolved you’ll be able to proceed normally without triggering more errors.