does the hairdresser still exist here?
The website thebangs.gallery redirects to michaelmikosch.de:
$ wget thebangs.gallery 2>&1 | grep Location:
Location: https://www.michaelmikosch.de/ [following]

The website only lists the hair salon in Kitzingen.

Regarding the opening_hours: We could tag them with "on appointment" for Tu and Sa