We work together with FietsROB: a link between bike shops and lease bike users, among others. They arrange the handling of service, maintenance and repairs. You can submit repair and maintenance requests to FietsROB. If you send an application, FietsROB will assess it. This way you can continue helping your customers. After a repair, you submit the invoice to FietsROB and they will pay the invoice to you.
Warranty is via the usual route with the manufacturer of the bike.