A Ziggo moderator can cancel the Deco's for you and provide the correct information and when and how to return them.
This is a customer help customer forum where Ziggo moderators/employees, they have Ziggo in front of their name, usually drop by in every topic within one working day.
Make sure that your zip code and house number are in your Ziggo community profile, they cannot be seen publicly, so the correct information can be obtained immediately.
After clicking on the link below, scroll down on the next page: https://community.ziggo.nl/t5/user/myprofilepage/tab/personal-profile:personal-info