How can my sim card company deduct balance on clicking an ad?

[wisifo]

I recently clicked an ad on my Android phone unknowingly and my carrier charged me for activation of entertainment pack.
It was actually Vodafone.

 

[webworkings]

You have to contact your carrier/service provider to find out how to block such charges on your account. Unless it was charged through google play, which then you need to remove your payment info from google to stop it from happening through there. Any account access you have set up to your device is a route to places being able to charge you for things. Better to not give that access.