For what it’s worth, it’s now been about ten days since I purchased, and haven’t yet received any emails from developers. Not one license!
Contacted EE-Heist guys a couple of times (email, forum, twitter), but still haven’t been able to resolve this.
The addon developer sites aren’t even listed on the EE-Heist, so I’m going through the code manually, looking for individual contact info or site info…
Real pain, but I’m guessing that this could be an isolated case?