I created my own seller account under the email I used to log into (Clients) Amazon brand account. If I go to my seller account I have access to create a brand store and A+ content but when I switch to the Client account I do not have access. The listings I created on behalf of Client are on this account where he gave me log in supervisor permissions.

I know this is getting confusing, let me explain.

I just started a brand management business, Client contracted me to create product listings/brand registry store, advertising once we are set up and running.

The owner created his Amazon account then sent me and invite to (My Email) and gave me full access under user permissions to everything.

I created the product listings under his account and registered Client with Amazon brand registry.

The brand was approved and now when I am logged into Clients account I can not access the brand benefits to create a store or A+ content and more. Seller support said I needed to link a seller central account.

I just registered a new seller account under the SAME email used to log into Client account.

Then I logged into client account under my email and gave the new seller account access under the brand management user permissions to admin / rights owner.

Now my new seller account has access to the clients brand benefits and all brand options BUT if I switch to clients account I still can not create anything.

Is there no way to give me access to brand benefits when I am logged into clients account? It is the same email I use to log into both seller accounts.