I think it has happened here - which is why the lottery machines now play a tune if you've won.
Our local supermarkets - one tears your old non-winning ticket for you - the other gives it back as they are not allowed to tear it or even bin it because somebody complained!
I don't understand why you can't scan your ticket in store yourself - that's how it works in Ireland - also stops the "please scan these thirty tickets" twits from snarling up the queue.
[ yes I know there's now a phone app - but that's not guaranteed to be correct apparently ]