Trying to set up a new seller account: won’t let me

So I’ve set up a store previously. And i’m not working with that store anymore. But when I log in to Amazon Seller Central, it asks me which of my accounts I’d like to use: then it lists the previous account (Business 1), but it does not give me the option to start a new business.

How do I start a new account for Business 2 with my Amazon Seller Central Acccount?