As a buyer you can now easily pay online directly with iDeal, Giropay, Bancontact & Przelewy24. If you are a buyer in the SEPA area (=Europe) you can make a bank transfer to a personal bank account number linked to your account.
As a result, you will no longer see any bank details on the invoice and you will have to pay your invoice at "my purchases" in your own account. In my purchases you can find the orange box "paid" at the relevant invoice number.
You will then see a new screen with the payment information. Follow this and click on "I have paid" at the bottom.
Troostwijk will immediately see in the system that you have made the payment and you will within 48 hours receive an invoice with payment on it.
If you are a buyer outside the SEPA area, you copy this information to your own banking system and you can only pay the invoice this way.