I had a taxi driver who did that…it was around 3 in the morning and he thought he’d get away with it. I noticed that he was heading a wrong way and I told him again where I was going and he tried to claim he thought it was this other place.
And then as we were heading nearer to my house, he was signalling a turn than went a long way around to my house. So I told him that it was the wrong turn and directed him to my house. When we got to my house I only paid him the exact meter charge.