Well, then you'll have to accept that you'll never know whether your photos were correctly exposed to begin with. All that's left is to make the best of it with the scans the lab hands to you.
Btw, I find this decision utterly incomprehensible for any serious photographer. You spend loads of time fussing over cameras, lenses etc. - and then when push comes to shove, you don't even get to see the negatives? You lost me there.
Thank you K...... i find it incomprehensible too.
