Battery change for my mother.

Battery change for my mother.
The appointment was changed 12 hours before for obscure reasons for changing the schedule.
She had to return in the morning at 8:00 to go out in the late afternoon.
Finally she came back at 11:30 to be admitted to the block only
18:00. My mother at 80. The operation itself is only 45 minutes. Obviously she could not leave the same day which allowed the clinic to charge two days of single room.
On-site presence 26 hours while it usually takes 8 hours maximum. To avoid absolutely.