Lambert left Norwich for Villa over the summer.
And Lambert made it clear there was still a feud between himself and the Canaries chairman.
Lambert said: "I've not spoken to the chairman for about three years. That's a bit of an exaggeration, maybe two. Why? I don't know. Let him talk. We'll see what happens.
"I always had good relationships with people I've left at Livingston, Wycombe and Colchester. So unless I'm wrong, I don't know where he's plucked that one from.
"But I've got other things to worry about. I've nothing to be ashamed of. I took advice from the LMA and I know what's going on.
"It'll be in the hands of a managers' tribunal and hopefully it will be sorted out.
"I've nothing to hide. I couldn't have handled it any differently, I know what happened."