For those looking to travel to Vietnam, use Grab or Be. Grab is the most popular choice, while Be is a local competitor.
Also, I’m pretty sure the meter didn’t display the same number of zeros as the currency. That is, the last 2 zeros were omitted on the meter. But the driver said there were three omitted. Something like that. Oh well.
Otherwise, I had a wonderful stay. Beautiful country, nice people. I can’t wait to go back.
What I recall is that the meter didn't cut off the last three zeros but rather just two. Maybe it was a faulty meter (or maybe it was me). I was just off the plane, it was middle of the night and I was exhausted.
I should note that it was me who suggested the wrong amount, and he just accepted. I don't think he set out to swindle me.
Overall I found the country to be mostly free of people trying to take advantage of foreigners - Unlike Thailand and (especially) Cambodia. I also felt very safe there.