@Priechiowauch30
thanks for the contribution
> Can you please see if there is any issue with this?
You have to go through the customer area > My Swisscom > Bills & Costs
My Swisscom - Bills & Costs
or
Overview: Data, bill & contract - Help | Swisscom
You can check your use in the Swisscom Cockpit
Cockpit: Enter mobile number (swisscom.ch)
If you need the details of the outgoing calls and SMS, please note that only the last 31 days are available
The details are sent by post to the owner's address only and cost CHF 5.-.
It is also possible to contact the Swisscom Hotline directly
Residential customers: contact us via call, chat, text | Swisscom
Hope it helps!