You are completely wrong. You made a contract with two minicab companies knowing that you were unable to travel with both. By the time you cancelled Forest Hill Cars the cab was half way to you. Therefore, the driver had to turn round and come back to Forest Hill. You have wasted his time and money and taken a cab out of the area causing other customers to wait longer than necessary.

I have used Forest Hill Cars many times and found them reliable and reasonably priced.