@naveenews, the reason why your referral code was removed from the Rewards Discussion from an Oracle is this post of yours is against Community Guidelines hence why you are wondering or other people who are reading this.
For all the newbies, please don't do this. If you accidentally screenshot your screen with your referral code, an Oracle may go into your post, and delete the image. It's much faster for them versus blacking it out.
Do continue to post things in the Community. Just a few no-no's, please read this important notice from one of the moderators who put this out in March 2019 (an updated Terms of Service).
Cheerio and stay safe!