this app will be used by our company on-demand delivery drivers.
we have clients (restaurants/cafes and individuals) who need delivery service.
we take these orders from clients and send it to drivers
driver will take the delivery change to him and give us back a commission.

this app is to manage the commission paid to our company
when driver start working for us, we create an account for him with phone number and balance =0. we create an account for him on our backend system with his phone number
driver can charge the balance like a prepaid card. driver can use orange buttons to charge: +5.00 or +10.00

the process is:
- driver charges the balance with orange buttons
- driver status is automatically activated and will be ready to receive orders
- we assign an order to the driver and deduct the commission from his balance on the system
- when driver run out of balance, we will stop assigning orders to him until he charges his account again.
- driver can now use the app to change the balance again