While abroad, I switched of the roamaing function and also the mobile data of my iphone. Nevertheless, I still got phone calls through my combox (without seen it because the phone was not ringing, nor messages was left). Anyway, because I never received/got the calls, the calls went diverted to my combox. Result: addtional costs, as Swisscom charged each time someone (or even telemarketing) did call my phone number. Anyone had this experience? Is anything I can do to prove Swisscom is acting incorrectly icharging us for such cost? I can't find any information on that, nothing mentioning the importance of blocking your combox if abroad to avoid additonal, unexpected costs.
Why don't you mentioned to switch off the combox as tip to avoid extra costs abroad? I just got my bill with additional CHF70.- due to calls I never recevied but charged to my combox. I did not even have a message let from my friends or telemarketing call, but most probably they called my mobile till they heard the combox announcement. Anyway, Swisscom is charging those calls!