Send the Widerruf an widerruf@cc.o2online.de.

Thanks, I’ll drop an email. But contract is not activated yet & phone is not received. 

Hello @Makarand Parab,

welcome to our site and thank you for your enquiry!
As @schluej has already recommended to you, a revocation is the best remedy in this situation. It may not be possible to stop the shipment of the device, so you can then refuse to accept the device and it will be completely returned afterwards.
However, the contract can be cancelled directly in advance.

Kind regards
Jessica

Hello @o2_Jessica,

Thanks for the update. How should I proceed with the revocation?Any additional form or written format?

or it just an Email for revocation? 

Kindly let me know. 

Regards,
Mak

Hello @Makarand Parab 

https://static2.o9.de/resource/blob/6952/45403f4792ccc680775ec61b681ce64f/agb-widerrufsbelehrung-mobilfunk-privatkunden-download-data.pdf

Thank you @o2_Jessica 
Its done :)

Hello @Makarand Parab,

great, thank you for your update!

And thank you @Bollermann for your help with the form!

If you have any questions or concerns in the future, please feel free to contact us in the community!
And for your information: we also have some FAQs in English with useful information. You can find them under the following link:

Wish you all a nice weekend
Jessica