
Pascal M
The app simply doesn’t work. I can’t log in, can’t view my contract, and constantly get “technical error” messages. My contract expired and I can’t renew anything because both the app and website are broken. The chatbot keeps telling me to “use the app” even though the app itself is unusable. Completely stuck with no support. This needs to be fixed urgently.
Telefónica Germany GmbH & Co. OHG
12 December 2025
Hello Pascal M, thank you for your review. Has your contract already been deactivated and you would like to continue using it? In this case, reactivation can only be requested through customer service. You can find all contact details on our website.

Cristiana Istrate
- Flag inappropriate
- Show review history
So many problems with logging in.. Edit to respond: the same issues that so many people have when logging in: "Da hat etwas nicht geklappt" or the fact that I cannot even login in with a code from my messages. Also, sometimes the option for code login appears, sometimes it doesn't. Like other users, I have tried with erasing the cache, reinstalling the app, and still nothing. Edit 2: I can login on the website, but it's useless for recharging the prepaid card
Telefónica Germany GmbH & Co. OHG
21 November 2025
Hello Cristiana Istrate, danke für dein Feedback. Bitte entschuldige. Hat es inzwischen mit deinem Login geklappt? Deine Prepaidkarte kannst du alternativ auch im Mein o2-Onlineportal aufladen, mehr Infos dazu findest du auf unserer Webseite.

Daniel P
just terrible, phone support, email support and the app. second time I'm abroad and only have problems. Last time roaming was broken the whole trip and they could fix anything. made my trip a hell until is was able to buy 3rd party roaming via VPN. Now I can not even install a esim, every other provider just installs from the app. They want to sent it via snailmail, like I'm living in the last century. Definitely time to switch providers
Telefónica Germany GmbH & Co. OHG
2 December 2025
Hi Daniel P, thanks for your review. Is it about the QR code?