They told TheWrap: "This is not true. Luke has an excellent relationship with Sony. His representatives are in regular contact with executives at the highest levels at Sony and this has never come up."
Meanwhile, Luke has been hit by further negative accusations recently, when Kelly Clarkson claimed he is "difficult to work with".
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She said: "I'll be honest about the guy, but I don't know that situation. He's not a good person, to me. We've clashed. He's difficult to work with, he's kind of demeaning.
"Obviously he's a talented dude but he's lied a lot. Musically it's been really hard for me because he will just lie to people and it makes the artist look bad."
- Bang! Showbiz