You can view your journeys and any issued invoices at any time in the my cambio portal.
Invoices are typically issued fortnightly. You will receive an invoice for journeys up to and including the 15th of the month, and if applicable, a second invoice for the second half of the month, which will be issued during the first few days of the following month.
At cambio, invoices are automatically paid via direct debit. The date the amount is debited from your account is listed on your invoice under "Zahlungshinweise".