I lived in the Netherlands for about 6 months in 2015 and was a customer of Ziggo (internet provider).
When I cancelled my account (November 2015) they told me (on the phone, not recorded) that there was nothing else I had to do. I was moving back to the UK and wanted to check everything was cancelled and all payments would definitely stop etc...
In February 2016 I received an email telling me that I owed them €400 for not returning the TV box thing. (They never asked me to return it in the first place).
I asked for proof from them that they told me about this and they couldn't send me anything.
Now it has been sent to a debt collector and they are threatening me with legal proceedings if I don't pay. I just got off the phone with them and they also said they don't need to send me proof.
They claim it was in the T&Cs when I signed. I asked them to send that over so I can see and they said no. They repeatedly claim that they "don't need to prove it".
They seem to think that just sending me an invoice is proof enough.
If I really do owe that money and I really was told about it (told about the charge for not returning the box) before that invoice arrived then I have told them I will pay. I have told them this for over a year and for over a year they have not responded to my emails and have not sent any other document than the invoice sent in February 2016.
Not sure what else I can do here?