Hi,
I have been using a sim card of O2 from 19.10.2020. To be honest, I don't know which type of contract I am using. However, there is an information in my O2 account (Ende Mindestvertragslaufzeit: 19.10.2022). Therefore, I guess that it is 24-month contract.
I intend to come back my country (Vietnam) in this May, so I would like to cancel my contract before this May. Is it okay? Which documents do I have to provide to cancel my current contract? Please kindly advise me the detailed procedure.
One more thing, if it is possible, please let me know the email address of your customer service department. I would like to contact them via email to provide more information of my case such as my phone number.
Many thanks in advance.
Vu
Edit by o2_Katja: Moved to our english community