There are a few reasons why this could be @Nicola77
Does your bill not explain what the charges are for?
To get to the bill details, see this guide:
Guide: How do I get to the 'Download Bill' page?
The charges could be down to roaming:
Guide: Roaming in Turkey and Cyprus
Or it could be premium services:
Guide: Have you fallen for or been conned into a premium rate scam? What to do next
If your bill does not go into details, then you need to contact customer services to ask.
You can call them on 202, or message on social media if you have that.
Twitter | Instagram | Facebook
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
