You will need some BNB in the BSC network in order to buy Inddais or transact on our official website. You can buy BNB (BEP20) with debit or credit cards, online banking or even swap for other cryptocurrencies on decentralised services like MoonPay, SimpleSwap, or using centralised exchanges like Binance, Wazirx or CoinDCX. And then transfer the BNB bought to your MetaMask wallet to get started. Select only BNB-BEP20 coin in exchanges or swap services.
Some exchanges lists only BEP2 tokens, which cannot be transferred to MetaMask wallet directly. If you have purchased BNB BEP2 instead of BNB BEP20 of Binance Smart Chain network, you can use services like Binance Bridge or SimpleSwap in order to exchange BEP2 to BEP20 and successfully transfer it to your Metamask Wallet.