[soloadventurer]

In Vietnam, Uber required a credit card for the longest time. This is a silly position to take, given most Vietnamese do not have credit cards. You can now use Uber without a credit card, but Uber's position had a cost.

Grab Taxi has now taken much of the market and do not require a credit card. I will never use a hailing service requiring a credit card, and as such I can never be charged a cancellation fee.