I think the problem some people have is using third party transfer services that move the money internally to Thailand then transfer to you from within Thailand
I've never had trouble in the provinces. I had them try to extort me in Phuket. Some guy took the package, they sent me an email referring me to someone's private email, and when I went into customs they claimed there was never a package, "but maybe if you talk to the person who emailed you can work something out"
I don't. But it stands to reason that across dozens of trips I would see some in service. Is it not scientifically conclusive, but enough anecdotal evidence to be interesting.