Support
This page is part of the AppFoyer example site. The app it describes is not real, so there is no support queue behind it.
On a real site this page is where a store reviewer, or a user, finds a way to reach the developer: an email address, expected response time, and whatever else the developer wants to say.
Contact
Questions about the platform itself belong at appfoyer.com, not here.
Response time
A real developer would state one here — for example, "we reply within two business days".