Benutzeraktivitäten

Hi, I am leaving Germany and going back to Indonesia on 24 January 2019. I would like to cancel my contract with Vodafone mobile Internet. How can I do that?I tried to fill the online form but it did not work for me. I heard that I can start a thread...
Hello,  I have to left Germany and can not cancel my Vodafone internet contract. The online cancellation form does not work for me. Please let me know how to contact Vodafone and cancel the contract. thank you i best regards,  Fadel