Connecting to Square

We use Square-Up Readers and as I have just signed up as a Power User I would like to enable this integration. When I click Activate I am directed to the Square logon page, when I enter my credentials I receive a message: Only the business owner can authorize applications for this Square account.
When I check my Square Account I am the only user.

Hello @DavePMartin

You would need to contact Square directly as it their login page which we have no control over.

Fair enough. I was hoping that someone else might have encountered it but you are right.