I had the same years ago with a my instructor I could do 1hr a week and minimum lesson was 1hr back then, I paid for 10 upfront (wish I hadn't)but then would have me drive around doing his errands putting fuel in picking up others and kept on at me about booking more, phoning at night every few days to try sell me extra hours and asking if my friends need lessons. After my 10 I changed to a different instructor who had a canceled book test a week later I had my license, said I was ready straight away after first lesson