Tarif nicht aktiv

I just joined O2 Prepaid. I paid the initial activation fee and €10 for the 20 GB plan. While I was using the data, my wife topped up €20 and subscribed to the 80 GB data plan around 12:00 PM.

After that, I did not check my phone and left it charging. At 3:00 PM, I opened my phone to check the news, but the internet was not working. I waited for my wife, and by 9:00 PM, she suggested that maybe I needed to top up again because there might be a required maintaining balance for the plan to work.

We topped up another €10, but €1.49 was deducted again for data. My wife is very frustrated about what happened.

Could you please explain why the service is so difficult to use?
Why is my data not active when I already paid for it?

I have already tried troubleshooting my phone:

• Restarted the phone
• Reset network settings

But nothing worked.
Why can’t I use the data that I already paid for?

https://i.ibb.co/BVws02mR/Screenshot-20251217-223258-Chrome.jpg

https://i.ibb.co/FkvnkdKR/20251217-223100.jpg