That is why its good to let your Filipino spouse handle important matters.
Not the same thing but similar while on one of my visits to my wife in Thailand, We were at a bus station a few people came up to us asked us where we were going. My wife decided to teach me a lesson... we followed the "helpers" to the bus, my wife had us stop in front of it. She told me to look at the sign where the bus is going and to look at the sign where the bus was pulled in. It was not the right place. They were trying to take advantage of the falang (foreigner) by sending him to the wrong place. Very common occurrence and lesson learned to not rely on the "helpers" ever and to let my wife be the lead.
Could that sort of issue happen in the Philippines as mentioned above?
When we were using private transportation my wife was the one that would negotiate the price as she also speaks a bit of Thai.
Chris