There are two methods to access the page.
Method 1: Access from Nero Start:
1. Open Nero Start and click the Account Settings button in the upper-right corner.
Select My products.

2. Locate your subscription product and select Details.

3. Click Ref Number.

4. In the left sidebar, click button of Request refund.
5. Select the refund reason and input the comment, click button of REQUEST REFUND and sent out the request.

Method 2: Access from www.nero.com:
1. Click the Sign in button in the upper-right corner. 
2. Select Subscriptions.

3. Locate your subscription product and click it. 
4. You will proceed to Step 3 of the first method.