I also face something similar to TS. Luckily Uber cancel policy can give driver RM 5. So I apologize to the drivers and happily let Uber charge my cc RM 5.

I was at car service centre, I was told I need to leave my car there. So I book Uber to go home. By the time Uber arrived, suddenly the service centre so free to immediately service my car, and ask me where's the defect part, wanna hear my complaints etc. I was like, damn I feel sorry for the Uber uncle in the Nissan Sentra so I waited to meet him and explain my situation. He's ok, he understood my situation as well. So dua2 happy.

Wish Grab would have something like this.