I just got my sim card 2 days ago, it is already activated as i can already connect to the internet but when I call anyone it says “Call Failed” all the time, i have restart and re insert my sim card and update my phone. How do I resolve this?
(Thread moved to our english community, o2 Michi)
Lösung von o2_Jessica
Hello
here you find all the informaton needed to revoke your contract:
If you have any further questions do not hesitate to contact us.
Kind regards,
Jessica
What is the name of your tariff?
"o2 Free ..." or "o2 my Data ..."?
Calls cannot be made with the latter, as it is a pure data tariff.
Hi 
welcome to our community.
Unfortunately 
If it’s not the tariff you wanted you can withdraw from the contract within 14 days. If you have more questions regarding this issue, please write us here.
Best regards,
Michi
It looks like i have the “o2 mydata” line, how can I cancel this if i cannot call any number!? What would be the next option to cancel!?
Hello
here you find all the informaton needed to revoke your contract:
If you have any further questions do not hesitate to contact us.
Kind regards,
Jessica
Hello, I’m having the same problem I didn’t know the difference from my o2 free and o2 my data. can you switch it for me? I want to be able to make calls too. Thank you
Hello
If you want a different contract, you can order a new contract an the data contract can be cancelled by you.
Please have a look at this thread:
Kind regards, Ines.
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