1. This is a customer forum, not an official support forum. We cannot help you here (in this case). Please contact netcup support.
2. Of course you can make phone calls from Asia to Germany. Claiming that this is not possible only increases your lack of credibility. (If there is a language barrier, I wonder why one would place such important and critical services with a hosting provider they cannot communicate with in an emergency.)
3.Do not hold netcup responsible for the fact that you handled your account security so irresponsibly.
4. And lastly, and perhaps most importantly: You don’t need to write everything in bold.
Apologies, the translation was done by Gemini; I was just venting my frustration. I am sorry if I bothered you.