Without speculating too much, there are maybe two points I would make.
We know in the case of Pierre Poutine that there were at least 6,700 calls placed. Again, if I look at the complaints received, there's quite a gap there.
The other thing is that, yes, there could be errors, and very legitimate and good-faith errors. What is troubling here is that there were definitely calls that were placed on behalf of people, falsely placed on behalf of people, including Elections Canada.