Questions about Zahnheld Electric Sonic Toothbrush Gero Black

This toothbrush looks exactly like my Paropik, which I bought three years ago in Fust. Unfortunately, there are no more replacement brushes. Because the brush is really good! To the actual question: Will Galaxus also offer replacement brushes? Otherwise it's probably not worth buying.

Hello! How many brush heads are included in the package? On one of the pictures is written 1, in the text 3?