The Germany international has said he wants to leave the club and was given assurances that he would be allowed to go, but the Bundesliga side insists it made no such assurances.
Wolfsburg has dismissed claims from Julian Draxler that the club made an agreement to sell him this summer, after the Germany international revealed that he wants to leave the Bundesliga side.
The 22-year-old told Bild that, when he joined them from Schalke last year, he had been told by coach Dieter Hecking and sporting director Klaus Allofs that they would let him leave if bigger clubs showed an interest in him.