It wasn't me, it was reported on a news service.
The way that you wrote it ("I can recall" and all the specifics) could only be interpreted as your reporting your own experience...
"Best I can recall was the taxi driver who could speak some English, half way swampy to the city said 'please show me the taxi card you received at the airport, see, it says 50Baht for airport taxi service, it's a printing error, it's actually 500Baht'."