Hi @lore.ver.elst !

You need to cancel your current subscription only if you moved to a new country .
In your case you only need change your payments details .

In link below will explain how to change your payment details .

https://support.deezer.com/hc/en-gb/articles/214349045-Manage-Your-Deezer-Subscription-Payments

or contact Deezer Support / chat

https://support.deezer.com/hc/en-gb/requests/new?ticket_form_id=360000057829

Thank you. However I'm unable to change my payment details. Not on the app and not on the desktop site. There is no button to click. 

Did you contact our Deezer Support Team already? Our agents will be able to check your account and help.
Thanks