You can always send a message to your organization by simply replying to a message they have sent you. But if you do not have a message to reply to, you can send a message to you company's admins by following these steps:
- Navigate to the Menu.
- Tap on your company name. This will take you to the main network page.
- Select the pencil icon.
- Compose your message.
- To send, press the arrow in the bottom right corner.
This message will be delivered to your network administrator. You may receive a response, or your message may be passed along to your appropriate manager.