I got the bill from O2 which normally costs 30 euro but now there are 360 euro. I took a closer look and saw that it included Twitch Spotify and other games that caused this amount. But I didn't buy anything from it. Now my question is: what should I do, I will definitely not pay the 360 euro!
Talk to the provider and clarify where the costs came from if this is not apparent from the invoice.
You have probably just exceeded your approved data volume significantly.
Call there immediately and ask which subscriptions may have sneaked in and then activate a subscription block.
What number?
Call o2 … They will surely know the problem and can help you there!