Ok, I'm posting all the codes I've collected so far, but avoided posting because of the problems this contest. I've left them in two separate groups, codes gathered the first day of the contest and codes received today when I played catch up and hoped they would be working codes.
These were "won" in the Canadian contest.
I'm pretty sure it will be a random mixture of codes that work and don't. This is based on the fact that of the codes I got today, I tested the two highest (which I'm keeping for the time being), the highest code didn't work, the 2nd highest did. But I haven't used it, and may post it later, if I can get the best code to work.
When i contacted kobo via chat, they confirmed that the highest code wasn't working at the moment, BUT claimed that there is still a chance that codes that were sent and didn't work, will work in the future, so it's worth trying again later, as they are aware of the problem and if they resolve it, all codes should work, even those that previously didn't.
I take it with a few pounds of salt, but will try later, and try a re-chat (my word

) if it still won't work.
"Won" on Day 1
"Won" Day 7 (today)