Hello,
I'm afraid I don't really understand your question. You were given the genin rewards because you were a genin last season. Your rank then resets with the new season if you obtained the maximum rank before, or remains the same if you have not yet done so.
Does that help, or perhaps you can clarify your question for me?

Thanks and have a great day!

Have you ever gotten to the final rank, Sage of Six Paths, before?

I see, ok. If you are not getting the rewards you should be getting, you will need to put in a customer support ticket to get those rewards back. Here is the link.

https://support-center.oasgames.com/

Thanks and have a great day!