The caller — who describes themselves as the head of reception and does not mention Payne by name — says the guest had been there for two or three days.

Sistema de Atencion Medica de Emergencia, the emergency health service, confirmed to Telemundo that Payne fell from the balcony of his third-floor room at the hotel in the city’s Palermo district.

In a series of Snapchat posts uploaded to Payne’s account on Wednesday, he talked about his time in Argentina, how he had been playing polo,…