Steps5
- Open Business.
- Tap Bring customers back.
- Tap Interest.
- Check the list.
- Tap Add interest.

If it stops you
Interest on credit is off: set the rate and Grace days in Shop settings.
Good to know
- Each customer is charged once a month at most.
Still stuck?
In the app, tap ? on the screen you are on and ask in your own words. Or email support@kowntx.com. A person replies in writing. Never send your PIN, code or card number.