Thank you, Minister.
As soon as the person who has breached one of the terms of the bill becomes aware, they have 30 days to return the amount of the contributions.
In terms of the graduated approach to penalties and enforcement, as with all offences and breaches under the Canada Elections Act, the commissioner of Canada Elections has a number of options and tools available, starting with a caution letter, then a compliance agreement. There's a $1,000 fine upon prosecution and conviction, so that would be reserved for the most serious instances.