I've had a look and you definitely received bells for both threads you've posted today, as well as every post that wasn't in a board that doesn't award TBT bells for posting. I see no instances at all where you should have earned bells but didn't, other than the fact that you're posting frequently in the boards that don't award anything. I believe this is where the confusion is coming from!
Also, there's no cap on the amount of bells you can earn per day or any sort of cooldown period for earning. Any post in a board that awards bells will count towards your total.