This endpoint allows a vendor to initiate a refund, either full or partial, for an invoice or bill that has been financed by Lendica. The refund process requires the unique ID of both the invoice/bill and the company in the partner's system. Additionally, the amount to be refunded can be specified, or a full refund will be assumed if the amount is not provided.

Usage:

• Request: A POST request with a JSON payload containing the partner_invoice_uuid, partner_company_uuid, and optionally, the amount to refund.
• Response: A JSON response indicating the status of the refund request.