26th July? You realise that invoices are issued retrospectively, so you would pay for July in August? Also, even if you terminate the contract early, you still have to pay for one additional month. You should check the invoice dates and amounts.

Did you send in the deregistration certificate and proof you are now living abroad, and did o2 confirm the termination?

Thank you for this information. However, I was not aware that the money is deducted retrospectively. 

Yes, I have officially terminated the contract, sent the router along with city de-registration certificate. I had initiated the termination step on 11th July. O2 confirmed the termination step via email and and  I received shipping label for a free return to O2 logistics center. I had done my city de-registration on 19th of July and sent the router on 26th July via DHL (along with city de-registration document).   

Edit by o2_Andrea: persönliche Daten aus Screenshot entfernt

Hi @niveditasikdar and welcome to our Community

Thanks to bs0 you have recieved helpful information already. Additionally, it would be very helpful to know what date the cancellation confirmation says. Is the confirmed date of contract cancellation July 26th?

The confirmation would have been sent to you by e-mail. Let us know what it said, so we can investigate further

Best wishes,
Rebecca

Hello @niveditasikdar,

Have you already been able to figure out why money has been deducted from your bank account, despite the contract being cancelled?

Was it the retroactive billing, like bs0 has suggested?

Best wishes,

Rebecca