I can’t log in to My O2 app. It says login failure; I can use it via the website, but with the same credentials, I can’t log in to My o2 app. Why?
Edit o2_Sven 14.07.2024/19:51: Moved from English o2 Community: Broadband & Landline to Mobile
Edit o2_Kathi 07.11.24 Title adapted for a better overview