Ceramic-coated machines cannot be washed with shampoos of unknown origin.
I was forced to leave the establishment after I started using my expensive ceramic shampoo without washing the car.
I spent enough money on a device that turned the time around for nothing, and the whole process would not take me more than 10 minutes.
Score 1 for lack of flexibility and rude attitude towards the client.
As a result, I took the bucket of shampoo without washing the car and went to a place where every customer is appreciated.