Need to differentiate between attempting to LWC a region centrepoint chest and LWCs elsewhere within a region. Also might need to differentiate between regions (structure regions) and super-regions (town regions).
There was discussion with the developer that region centerpoint chests shouldn't be able to be LWC'd because this would mean the structure couldn't be raided properly. So the decision about whether to allow this or not would depend on policy on raiding and declaring war, north and south.
I'm not sure about LWCs elsewhere within a region (structure) or super-region (town). He didn't seem to like LWCs generally, lol.
But there definitely was an intention to prevent centerpoint chests from being LWC'd.
The other aspect, then, is that if the chest shouldn't be / can't be LWC'd, no payment should be taken, eh.