In NZ we have a similar system, but similar laws apply to non-party broadcasts, where unregistered groups or individuals an spend a small amount of money (~10k)

In NZ we have a similar system, but similar laws apply to non-party broadcasts, where unregistered groups or individuals an spend a small amount of money (~10k) and registered groups can spend something like 250k (the three largest parties get more then that each and the rest get less) If the ECC thinks you breached that they can take you to court, but the results will almost certainly stand.