Complete the [online return form] (https://www.coolblue.nl/en/return-request) and clearly state which part is missing. Don't forget to add the serial number when you register. Make sure to indicate which of these 2 solutions you want:
Oh no! Report this to [our customer service] (https://www.coolblue.nl/en/customer-service) and we'll make sure you receive the correct order as quickly as possible.