For the Netherlands
Log in with your e-mail address in MyRiverty. Afterwards choose "Submit return". You can check which items you have kept. The invoice amount is updated now and you can already pay the correct amount via iDEAL.
For Belgium
Log in with your e-mail address in MyRiverty. Afterwards choose "Submit return". You can check which items you have kept. The invoice amount is updated now and you can already pay the correct amount via Bancontact.
