Contract cancellation

Dear O2 Team,

I have used the O2 DSL for more than six years. Thanks for your service.

I wrote a letter on May to terminate my contract. Becasue I left Germany on mid-September.  I’ve sent the router to O2 and O2 has comfirmed that router had been recieved.  

However, I just recieved an invoice of October.  Please check what went wrong with the contract termination?  I want to check what happend but I cannot even click the “Kündigung vormerken” button in the online portal anymore. 

Hope you can solve this isssue soon.

Thanks.

Best regards,

Bo

Edit o2_Larissa: moved to English o2 Community: Broadband / DSL