Why do you say that the CRA is the most competent organization in all of Canada? Not doubting that it could be or anything I was more wondering on what basis you made that claim.
Every single interaction with them and every single person I know that has to deal with them has been nothing but mindblowingly professional. Even on the phone, they are exceptionally good at getting to the point IMMEDIATELY but without the normal "this isn't the right department" BS that every other Canadian government agency has.
It's hard to even think of a number two. The Supreme Court maybe? Elections Canada? Ellis Don?
So I called them up, waited on hold for 5 minutes. I spoke with a CRA rep who said "Yup, we screwed up. Fixed". And it was fixed. Total time to fix an $11K screw up? 15 minutes. Try that with any other organization.