Help2Drive ****s learners

We paid the full amount for 10 driving lessons of an hour each for our son. During one lesson Adrienne did not spend the full hours worth on the lesson because he had to drop other people off promising my son an eleventh lesson. When the time came for the eleventh lesson he denied making the promise. In addition a few days before my son's driver test he told my son that he is not ready for his drivers after he- Adrienne took him to book for his drivers. How do you have a driving school and not assess whether a student is ready for their drivers and go ahead and book the drivers. In addition to the prices on his website their are hidden costs that you pay extra for each lesson. Over a thoudand rand to book for the drivers and take him on the day of his drivers. When I confronted him he put the phone down in my ear.