The Daily Star says Holt has been hurt by being considered â€˜too oldâ€™ for an extra 12 months on his existing deal.
He feels he has been caught up in the salary stakes and it seems increasingly unlikely Norwich could fend off a serious bid by Lambert.
Even doubling the strikerâ€™s Â£20,000-a-week wages will still come in well within Villaâ€™s restructured salary scale.
Lambert is looking for guaranteed goals to get him off to a flyer at Villa.
Holt proved the key figure for Lambert in Norwichâ€™s rise through two divisions to the Premier League.