Just tried to take advantage of the promo before it was gone. Of course my luck is that I find another bug preventing me from fully utilizing it.
So here's the situation. I go to handreg 5 .ca domains. But only 3 were getting the promo applied to it, the others listed at full price. I suspected that I was only getting three because I had won two TBR domains last week, the only logical thought was that it was subtracting those two registrations as part of my 5 promos allowed. So I thought, well maybe they applied the discount from those TBR purchases, that would have been cool if they did! But after checking, I see that no, I paid what I bid, no discount was applied. So I was only able to get 3 at the promo price.
I went back in afterward and added 2 more domains to my cart, just to see what would happen, but its still not at the $0.99 promo.
So in any case, just thought I'd let you know the issue.