As a local Councillor I ocasionally get asked to help with an employment related issue.
My advice is always make sure you are in a union as their hard working
officers know far more about employment issues than I ever could. They
will certainly battle for what you deserve. Advice is just one of a
number of benifits there are from being a member of a union. If you work
for a living you should consider joining a union.
Their details can be found on the internet