WTF?:

Iran fears that it will soon find it hard to get cash from abroad because of US sanctions. That's why the government wants to withdraw 300 million euros in cash from Germany.

Iran wants to fly around 300 million euros in cash from Germany to Tehran. This is how the country wants to prevent losing access to the money. The accounts could be frozen in view of the US actions. Corresponding information in the "Bild" newspaper has been confirmed by the German government.

Translated with www.DeepL.com/Translator

Sauce (German):

https://www.tagesschau.de/ausland/bundesbankkonten-ran-101.html