Fantastic post. Wrong forum section, shouting, liked own post, and no substance. Avoid.

Or: Explain what your issue is without shouting and maybe someone can / will help you.

why are you screaming?

https://www.o2online.de/service/guthaben-aufladen/

Hello @Unsatisfied customer and welcome to the O2 community, 
what is going on that you are saying these harsh words here?
As I understand it, it's about prepaid and you're having problems topping up?
Is this right and do you still need help?
Kind regards, Maren

Hello @Unsatisfied customer,
I offered to help you and I haven't heard from you since. Is everything OK with you now?
Regards, Maren