Log in to the Mijn omgeving with your DigiD and choose the option 'view declarations'. You will then be directed to an overview page with your submitted claims. The first column shows your claim number, the second column shows the date you submitted your claim, the third column shows the amount you are claiming, and the last column shows the status of your claim request. When the status of your claim is 'processed', you will see the option 'submit objection' next to it. When you click on it, you can submit an objection.
The processing of your objection will take approximately six weeks. You will then be notified whether or not your appeal will be granted (in full). In the event of a (partial) award, the awarded amount will be deposited into the account you specified when completing your request for declaration, within three weeks of receiving the decision. The conditions that a claim request must meet also apply to a notice of objection. Your appeal must be submitted within six weeks of receiving the assessment of your claim request.