Cury is Barca's representative in negotiations with Santos for the Brazil international.
"I only deal with Neymar's father, as the player's agent, and Rosell, as president of Barca," he told Sport.
"I'm not talking to any other representative. I'm going to all the Santos games and always see the father of Neymar.
"Barca has a vested interest in Neymar. He is on the first row of players on their shopping list.
"He is their choice. When Santos are willing to sell, we'll be ready to talk."