Translation of Anwärter

The billing of additional working hours is not justified, since it was our request to download the software and wait for the new version. They have admitted the error of the translation.
Everything's fine over here. The weather is a bit crazy, but otherwise everything is ok. I wrote this one based on what you gave me previously. This is a very common form of saying it in Spanish outside Argentina.
I understand your English, it's not bad at all. Yes, the English vocabulary is much larger than the German. The more you might spend time using the language, the better your vocabulary knowledge will become.