Monthly (unbefristet) to 2-years contract (befristet) DSL

You cannot make changes to or extend your DSL contract online; this can only be done by contacting customer service or by speaking with an o2 representative here.

Ok thank you kindly, and how or where can I reach out to an adequate representative here? 
 

Much appreciated! 

Hi ​@motivium 

welcome to our community. Pleasure to meet you. 🙂

If you tell us which tariff you would like to have and if a device is needed for rent we will make you a special offer. The other option is to give the router back and buy your own one to save the rent. 

Waiting for your reply.

Greetings and thanks to Bumer.

Manga

Hello ​@o2_Manga and thank you. Been with o2 for a while, I am only now discovering this über helpful forum. 
 

So thank you again for your response. I already have an existing monthly Tariff DSL Home M. I would like to keep the same Tariff - just switch to a 2-year contract.

Now , if I understand correct, a “special” offer is given in the case if I keep renting a router. No special offer if I use my own. 
 

Well, could I receive both offers, so I can decide what suits me best? Also with the offers, please provide clear information how existing and/or new contract would be managed. 
 

Taking the time to address my inquiries is greatly appreciated! 
 

Kind regards!
 

Now , if I understand correct, a “special” offer is given in the case if I keep renting a router. No special offer if I use my own. 

No, you have to pay always additionally when you rent a router from the provider. 

But an offer is possible when you switch from a contract that can be monthly terminated to 2 year contract. 

Ok, may I please have the offer for switching from a contract that can be monthly terminated to 2 year contract?

Thank you!