My brand has been approved in amazon brand registery. but not able to list products under my brand

My brand was approved in the brand registry portal a month ago with case id 8906027622. However, I am still unable to list my product under my brand. I received the following message:

"Brand Authorisation Required: The ability to create or edit ASINs using this brand name is restricted to authorised sellers. You need to apply for approval to add or modify products for this brand."

Even I haven't got any access to brand tools.