I did, took an Uber in Bangkok and there are occasional highway tolls, which I paid the driver 50 baht (~$2) cash for on the spot. I guess he forgot or decided

I did, took an Uber in Bangkok and there are occasional highway tolls, which I paid the driver 50 baht (~$2) cash for on the spot. I guess he forgot or decided to get a little extra cause he adjusted the fare to include it after. Simply filed a ticket and got reimbursed.