Here is the method:
1. Okay guys, so Binance is doing a thing where you get 45% discount when you use one of their BETA referral codes, which is still something new they are testing (and smart people like us exploit it
). So first step is to sign up to Binance through their BETA referral link: binance.com/en/register?ref=15930755
2. Now that you have an account with 45% discount, click on the square between the Binance logo and the "Buy Crypto" tab and chose "Academy"
3. Scroll down until you see "A Quick Guide to BNB Staking on Binance Smart Chain..." then click on it.
4. Once you have the page opened, scroll all the way down to emulate that you've read the article
5. Enjoy, instead of $45 worth of BNB, you will get $345 BNB which will show up in the next 24 hours in your wallet on Binance.
P.S. To open you wallet, you go back to Binance homepage, then you click on Wallet -> Fiat and Spot.