The banking add-on is a complex mathematical add-on that allows you to pay compound interest on users point balances, setup a central bank or setup recurring point payouts for your users.
Once the add-on is enabled, a new Banking menu becomes available for each point type you have installed. This allows you to enable and setup services for each point type.
Both the Recurring Payouts and Compound Interest services uses the WordPress CRON to manage when to compound or when to payout. If you have disabled the CRON on your website, these services will not work. Furthermore, it is important to remember that these scheduled jobs will not run on time if your website has no visits at the scheduled moment. So if you schedule something to run for example at noon, but no one visits the website until an hour later, the scheduled job will run first then. There are solutions to this using alternative CRONs or server scripts.
As of version 1.7, if you have disabled the built-in CRON, a warning message will be shown when you look at the services settings. This warning will appear even if you are using alternative CRON solutions.
If your website receives no visitors when the schedule is supposed to run, the recurring payout will not start. Furthermore on websites where the CRON is stuck on a scheduled event, the recurring payout schedule (along with other schedules) will not run either.