We'd be happy to follow up in writing, but essentially we are able to run internal reports related to underpayments and overpayments. That provides us with a bit of an indication as to where there may be problems. As we process transactions as well, overpayments and underpayments may come to our attention, and employees may report them to us through the contact centre as well.
When there is a discovery, particularly of an overpayment, we do take action to make the correction and adjust the T4 so that the actual T4 reflects appropriate earnings for that individual and the overpayment is addressed.