St Ledger is now focused on his career at Deepdale but says Preston chairman Derek Shaw failed to keep him informed of developments.
The centre-half said: "Everyone who plays for Ireland always has a link with Celtic - I'm Catholic as well.
"It would have been massive for me had I had the opportunity but I didn't.
"The club didn't accept the bid but it would have been nice if the chairman had returned my calls."
Coca Cola Ch'ship Promotion 09/10 Win Outright: Preston 25/1