If you cannot call the number then you will need to send your termination in writing instead:

Telefónica Germany GmbH & Co. OHG
Kundenbetreuung
90345 Nürnberg

If your contract can be extended you can be sent an offer by email if you say what tarif you would like.

Thanks for prompt response.

My present tariff on both numbers is O2 Free M.

In past two years I realized that my usage is less and I need O2 Free S boost 6GB.

I guess it would cost me 12,49 € per month per mobile number.

Regards,

dka78

Hi @dka78, 

welcome to our English Community. Nice that you still give us a chance to offer you an extension for both of your contracts. 

We will check what we can offer you. 

Would you also like to include a mobile phone in your offer? Then please check our devices. 

You also have the possibility to check the offers for an extention online. Just have a look. 

But, of course, we also are happy to help you here. 

Loving greetings,

Tobias

Dear @o2_Tobias, 

Thanks for your response. 

I do not need new phone, my phone is working fine. I just need new tariff.

Regards,

Deepak

Hi @dka78, 

okay, then I will check the offers for you. 

I have just sent 2 offers to you by e-mail. 

Please be aware of the fact that you only have the possibility to get the 50%-combination-benefit on one contract, namely on your contract with the number -921 at the end. 

But of course, I have found also a good discount for your contract with the number -680 at the end. 

What do you think about these offers?

Pursuant to the decree of transparency I need to inform you about our tariff leaflets which you can download here: http://g.o2.de/travo. There you'll find all details of the product listed.

If you like to accept the offer, just confirm it with the button “Vertrag verlängern” (extend your contract) in the e-mail. 

Loving greetings,

Tobias

Dear @o2_Tobias ,

Thanks a lot. I have accepted your offer.

Regards,

Deepak

Hi @dka78, 

thanks for accepting my offers. 

Is everything now okay with the new tariffs?

If you still have further questions, just let me know. 

Loving greetings,

Tobias