It's a classic style scam, they will keep increasing your first deposit request until your money is drained out.
Let's go to the "about us" page
[1], mentioned that:
Our company begins its history from July 2017
While the whois results
[2]66 days old
Created on 2022-11-11
Expires on 2023-11-11
Updated on 2022-12-23
Avoid it.
1.
https://ravebitc.com/about2.
https://whois.domaintools.com/ravebitc.com