Thanks BB, but was not my experience some weeks ago. AC agents give a different story and often demand certs for stopovers of less than 24hrs.
I flew YOW-YYZ in evening, overnighted, then YYZ-LHR on the dayliners at 9am and they wanted another cert. I gladly gave it but now I am wondering. Even though I have enough certs now, I keep them close to my chest. I have been known not to waste them on short haul flight as it takes so long to get them. Hell, I am still waiting for my 40 and 50 Q level certs and now my 60 Q certs!!! But I still do like the paper over the electronic ones. Please AC just find a quicker way to deliver the certs by mail. Cost is 48 cents last time I looked. Send them out as earned, not according to your next statement.