Sky Sport Italia journalist Gianluca Di Marzio has discovered an Instagram story where the Spanish midfielder commented on the spending of patron Claudio Lotito.
The new purchase is creating controversy at the Aquile, as the Biancocelesti have invested in a new airplane.
The report reveals an outburst on Twitch, where Luis Alberto said: “I saw the plane, but we have to pay for it. They buy things, but they don't pay us."
The 28-year-old was referring to delayed wages from last season.