Jordan says he received assurances from Bostock's stepfather, Mick Brown, that the 16-year-old would sign a professional contract with the Eagles.
But Bostock is now set to join Tottenham once a fee is agreed with the North London club.
"He [Brown] looked me in the eye on three occasions and categorically assured me that the boy wanted to stay at Palace," Jordan told The Guardian.
"Then he tells me that a member of our coaching staff, some mythical Keyser Söze figure [a character from the film The Usual Suspects], told him that John was not Neil Warnock's type of player and that he had no future at the club.
"That is a blatant lie. The man is a barefaced liar. It's all about money, which is pitiful when it reaches the level of a 16-year-old. If John had wanted to join Tottenham then fair enough, just say so. Why did we have to go through the whole charade of his step-father's litany of lies?"