I had an appointment at 20.00 to pluck my eyebrows...

I had an appointment at 20.00 to pluck my eyebrows and when I got there (around 19:45), there was no one there. I rang the bell several times and no one answered me. After the hour I had an appointment, I left without anyone having opened the door for me. Despite the fact that all the lights in the center were on, no one appeared there or gave signs.