Had contact with Ultimoo Incasso B.V. concerning a...

Had contact with Ultimoo Incasso B.V. concerning an invoice that would not have been paid. It has been agreed that the collection costs would be canceled because the invoice had not been sent. Invoice has been paid as discussed with an employee of Ultimoo Incasso B.V. Less than 5 days later, you may receive the message that the collection costs must still be paid. And if I didn't do this there would be additional costs. In short, Ultimoo Incasso B.V. does not meet his agreements and only wants to pay the collection costs that they are ultimately after. I therefore advise against making alleged agreements with Ultimoo Incasso B.V. to make. I am therefore very dissatisfied with Ultimoo Incasso B.V.