critical issue with my o2 Prepaid account access.

Hello,

I am having a critical issue with my o2 Prepaid account access.

Previously, I was registered and could use the "Mein o2" app without any problems. However, a few days ago, the app logged me out. When I tried to log back in, nothing worked.

I then tried to recover my password via the website, but without success. I even requested and received a temporary password/code via post (paper mail), but when I enter it, the system keeps saying it is incorrect. It seems my login credentials and profile are completely out of sync.

Out of desperation, I tried to re-register. When the system asked for my PUK code, I entered the exact PUK printed on my original SIM card holder, but the system rejected it as incorrect.

It feels like my backend profile is completely broken or locked. Could an o2 moderator please look into my account database profile, reset the online registration lock, and help me regain access?

Thank you!