Hi,
I sent my contract cancellation last year, and it will end by March/April. I would like to keep the number but change to prepaid. Can the customer service help to make it happened? I search everywhere on the site, no customer service email could be found. Hopefully this is the right place to get helped.
Thanks a lot!
Edit by o2_Tatjana: moved to correct category, from Mobilfunk-Vertrag to English o2 Community