been let down

I have booked a ten hours course with safedrive, and everything was going good. I booked my driving test and told my driving instructor "James" about it a month and before the date. he told me there will be no problem with the date and time. I told him that I wanted another 8 hours three weeks before the test and he was agreeable. a week before the test he told me that he cannot give me the hours we agreed upon and that he can only manage two sessions each an hour and a half. which I didn't like much but providing that I have been driving in my country for five years I thought with the previous 10 hours it might be enough. in the same day of the first lesson he called me to apologize about it and he did the same with next lesson. eventually he said he cannot go with me to the driving test cause I am not ready and it was too late to cancel it, but also too late to get a car to do the test with, so I didn't take it.
I am very very unhappy with the service and it did not come cheap.
many thanks for letting me write about my experience.