No need to post here for collecting payment, just use bit.do/Primedice to request your payment.
Stunna will update list of enrolled users when he get free time.
So far there is no limit number of participants.
Maximum of 400 posts per month will be counted, so you can post it in one day or when ever you can during the month.
Thank you very much for clarifying that. I have trouble sometimes understanding or reading through replies as english is not my native language. Thanks!