You can provide wallets to bank customers and all customers are paid in this wallet
You can keep your money digitally or in a wallet through a digital address that was previously created by default or created beforehand by default.
You can create a digital exchange button for customers to change customers safely at the bank.
The second proposal
You can set the global stock market and buy $ 1,000 for well-known companies or the stock market.
Customers subscribe to the shared subscriber code and convert earnings from stock to subscription every day or month.
And I will see your bank grow