So complain to Uber then. On your complaint about Uber prices fluctuating Uber are quite upfront about surge pricing and it appears you are well aware of it, caveat emptor!It would appear that he charged us wait time which is not right unless he counts loading luggage as wait time and then charged for M7 toll as well.
I thought Uber included tolls in quoted rate and taking 3-4 minutes to load luggage should not be an additional charge.
I agree with the recommendation of Didi, in my view Uber are frequently not that cheap and 9 times out of 10 Didi are cheaper, sometimes much cheaper.