Hi!

You can cancel your contract by fax or post. You can find all information here: https://www.o2online.de/service/kuendigung/

(You can use Google Translate to translate the page)

If you have left Germany permanently (and you have a phone contract) , than you should read the following document: https://static2.o9.de/resource/blob/67636/1514edef53eb4184657eaca1f67ca03a/contract-cancellation-moving-abroad-download-data.pdf

Hi @Guillembohigues,

thanks for your request concerning a cancellation because of moving abroad.

Was the information @TBCMagic gave you already helpful to you?

If you have any further questions, just feel free to contact our English community again.

Loving greetings,

Tobias