The agent of Philippe Coutinho insists Barcelona are not seeking to sell.
The midfielder has been linked with a return to Liverpool.
But Kia Joorabchian told the Telegraph: "I was told they have no intention of selling him, that Barcelona have not spoken to anyone and that stories to the contrary are simply not true.
"I will not let people talk about Philippe and put him down because for one-and-a-half years we have said nothing. I won't let them do that and all of us in Philippe's camp will not let that happen because Barcelona have told us he is staying.
"Coutinho's camp are not actively looking to move him but we believe people inside Barcelona may be acting without authority to try and sell the player.
"Either Barcelona have to contain the people within their organisation who are giving out information to the contrary or they have to tell us the truth if they have changed their minds."