Hello, Martijn.
Welcome to Microsoft Community.
We understand that you want to see the badge of your Microsoft Certified: Azure Network Engineer Associate, we will be happy to assist you.
To help you with this issue, we have initiated a Private Message where you will be able to share in a safe way the required information to verify your profiles and proceed accordingly.
Please find the access to this space on the top right corner of this screen as shown in the image below:

We will be very attentive to your response, if no response is received, we will proceed to close and lock the case after two business days.
Wishing you an amazing day,