To increase the amount of your BNB to participate in Binance #Launchpad you need to perform several steps.
1. Use your idle crypto as collateral on venus.io (BEP20 network and #Metamask , #TrustWallet etc.)
2. Borrow more than #BNB against your collateral on venus.io
3. Withdraw coins on Binance and keep them for pictures.
4. Wait for distribution of new LaunchPad tokens.
5. Transfer back BNB and repay loans to #VenusProtocol