If you are invited to paid charging by the charging infrastructure operator, you must store a payment method in the reev app from which the charges for your charging sessions will be debited.
In the Wallet section, you can add your payment method (credit card or SEPA mandate).
In the My Plan subsection, you can view the terms under which you are invited to charge.
In the Invoices subsection, you can view and download invoices issued to you.
Note: You can also adjust your payment method in the "Settings" section under "Payment Information.