This happens to us all the time because players forget that they have lucky charms or aren't paying attention or just forget the order of things.
The lucky charm will stop the first HIT on a 4+. It has no effect on wounds whatsoever. So you should have rolled for the Lucky Charm against the 3 hits.
If like us you roll lots of dice at once, we play that the lucky charm stops the highest dice. We should have a rule for what happens when high doubles are rolled but we just usally roll off if there is a choice between being hit with a sword or a dagger for example.
Edit: beat by WT