I understand most of what has been said is just being cheeky and venting.
However, I fail to understand how you have tried to solve the issue so far?
Most people 'should' do the right thing, but when they are silly enough not to, it can be a genuine mistake or trying to push the boundaries.
These are the sorts of people who you can resolve issues with fairly easily by 'catching them out', and politely asking for the issue to be fixed.
What have you tried so far to solve the issue?