Instagram Sandbox User invites never received
<p>Our simple company app that pulls in tagged posts was Sandboxed as of June 1. I know that we don't need to go through the review process- we're going to leave it in Sandbox.</p>

<p>I'm trying to add Sandbox Users. I have added the username and clicked the Save button. That user never receives an email, and when I log in to the developer dashboard as the invited user, I don't see a pending invite. In fact, even when I use the Sandbox Invites button at the top of the dashboard, it's impossible to get past the Developer Signup form. I don't want to create a new app with this user, I just want to accept an invite from our company account!</p>

<p>I've submitted a ticket with Instagram support and have not received a reply.</p>

<p>Additionally, I don't understand why, when I use the Sandbox Invites button from our company account, I see a message stating: </p>

<blockquote>
  <p>"You are not a Sandbox user for any client and there are no pending requests." </p>
</blockquote>

<p>Obviously the account that created the app is a Sandbox user, and I have confirmed that this account can post new content that is pulled in to our feed.</p>