Congrats! Thanks for posting as this is encouraging as I've been waiting here in Cambodia for almost 10 days now. I applied on Dec 16th, and am stuck here for Christmas. I keep going to the hotel staff asking to extend every morning, they just expect it now.
Looks like it took the full 10 business days for you.
I flew out after forgetting to do the 90 day reporting. No one said anything. If they do look closely, you can pay that small fine. But going out and coming back should reset the 90 days.