post https://rest-api.pay.nl/v8/Alliance/addInvoice/json
Use this endpoint to add an invoice for a merchant. This invoice can contain platform and transaction costs that you want to invoice to your sub-merchant. The invoice amount will be deducted from the balance of the sub-merchant and will be added to your balance.
This API is only available on our legacy api platform. Please use https://rest-api.pay.nl as hostname for this api.