Jinyus, it's not quite correct that only the "recognized refugees" are allowed to take German language courses for free. At the VHS refugees with Aufenthaltsgestattung can also partake of such courses.
Check out f.ex.:
https://***.berlin.de/ba-tempelhof-schoeneberg/vhs/kurse/deutsch/fluechtlinge.html
But you can't take German courses, Adile, when you are not registered yet.
Hopefully you'll get soon your papers.