Payments section in challenge details for Topgear challenges is incorrect

Payments section in challenge details for Topgear challenges is incorrect. This section must have text specific to topgear members.

<img width="1440" alt="Screenshot 2020-08-09 at 11 45 07 AM" src="https://user-images.githubusercontent.com/58783823/89726251-024e5a80-da36-11ea-9d20-d91483d29271.png">

Final Submission Guidelines

Git issue link: https://github.com/topcoder-platform/community-app/issues/4727