Hi guys! I'm going to spend 6 days in Germany, and I need some info about o2 sim cards. I read they have really good offers for international calls (to Italy, in this case), that is 29 cent/€ per minute.
My questions are:
1) where can I buy the sim card? Assuming I'm going to spend about 5 hours in Frankfurt airport
2) do I need a german address? And how can I activate it?
3) how much airtime do I have after activation, and where can I buy top-ups?
Thank you, you're really precious!
Edoardo