I'll ask one of my colleagues to elaborate a bit on what I'm going to say.
I would just mention that on the prepayment side—this is the wage subsidy we're talking about, which I would distinguish from the CERB—we had people who are very familiar with corporate tax filings, the corporate tax community and small businesses, look at the applications as they came in. We did a 100% review of them. A lot went through, because nothing looked too bad in the first run. We did kick out some, but then those experts looked at them and said, “Well, I don't know. Does this payroll number match up with what we've seen?” We did that. That was the nature of the prepayment controls.
I would just add—because it gets lost—that on the prepayment side we also communicated with taxpayers. I said, “Put a calculator out.” That's a bit like the software for people who do their taxes. It eliminates a lot of errors and mistakes. We found that was helpful. I know the business community found it....
Let me turn to either Cathy or Marc to elaborate, if there's more to be said about that prepayment. Again, I'm talking about the wage subsidy here and not some of the other programs.