Nobody has ever called nor leaved a message in those local MF radio stations. Never. It's not real. Radio hosts just say "Oh Lucas from Barrio Las Chapas tell us he loves the show and want us to play Despacito2.0 by Shockiro"
It doesn't make sense in 2021 and even less sense years ago when calling and leaving a message was expensive.
"Oh but what about recorded messages?". The answer is obvious, those are not even speech bots, just some randos unemployed getting pay pennies for every recorded message. What's the alternative? Some people unironically calling the radio and asking them to play the same fucking song over and over that the radio is being pay to play in the first place? Yeah sure, some bulletproof logic right there.
"But what about contests and lottos and shit?" Yeah sure, people calling the radio to win the incredible prize of some Jordan Peterson-level self help book, makes total sense 🙄
I was a DJ for my college radio station and I once had someone call in but I had no idea how to use the radio phone bc they never taught us how bc no one ever called in and I was worried that if I picked it up it would fuck up the music so I just didn't pick up
See? If those calls were real you would have been taught about them. But you didn't because they are false.