Twente believed they had a Bosman deal agreed with the Swede's camp, but agent Per Jonsson insists nothing has been settled.
Twente chairman Joop Munsterman said: "We do not know if Mr Jonsson is his agent. We have done business with Mike Guidetti, the father of the player.
"The most important thing for a young player like Guidetti is that he plays a lot of games. For that reason, Twente is the logical choice."
Juventus are also monitoring Guidetti at this month's U21 Euros in Denmark.