I have Insufficient smart chain (BNB) to cover network fee

I am wanting to transfer my SafeMoon to BNB to cash out but unfortunately I have £0.40 BSmart Chain that wont cover the transaction fee of (£1.72)
Is there anything I can do? Because I literally have no idea…

Thank you

To get Smart Chain BNB, you can buy via the third-party crypto provider that is integrated into the app (guide: https://community.trustwallet.com/t/how-to-buy-crypto-with-trust-wallet/507/2) or by withdrawing from an exchange (example: https://www.binance.com/en).