Moin,

first you made the contract online or in a shop?

Only online contracts have the 14days Widerrufsfrist.  

Second if you would like to use this 14days Widerrufsfrist than you should not cancel the Contract!

Cancel (Kündigen) means the contract will end at his runtime! With in the 14 days you have to use „Widerruf“ if you like to terminate the contract before is runtime, with in the 14 days!

Hello @Guulwade ,
thanks for your request.
schluej post an possible answer, is your request allready solved or do you still need any fürther support?

kind regards
Michael

Hello sir I just received a post that says i should pay 68.08  For the 10 days i used and u thought when i see my contract was Canceled but still I’m receiving this post I Need help real quick please.

Hey @Guulwade ,
I am happy to help. But I could not find any account at the given mail adress?
Would you mind send me your PKK, and mobile phone number via privat message @o2_Support ? 
So that I can check in on your bill?

You can also try contacting our english speaking support via phone, if it is super urgent:
 Welcome to our english speaking O₂ Hotline | O₂ Community (o2online.de)
“If you prefer to speak with the customer service please call 089 6666 300 81 and our colleagues will gladly assist you.”

Best Regards, Matea

Hey @Guulwade ,
great that we could sort everything out via @o2_Support private message.
You are in the right and you have been wrongfuly charged.
I’ve been in touch with the financial depratment and in the following days you will receive a written confirmation.
I apologize for the inconveiniences, I’m happy you got in contact with the community and that we could help 
Have a nice day!
Best, Matea

Good morning, I have canceled my abonament and they still want to charge me! Can you help me please ? 

Thank you very much, have a nice day