If you have received an email earlier that the payment will be proceed at 15th ( 16th due to weekend ), the process has already started ( I have received my Envato payment around 9 hours ago ) but you may have received a bit late depending on your Payment method ( It was PayPal for me )
Just be patient.
If you haven’t received any email earlier of the month, you may not be getting paid this month. Check your payment settings and contact Envato support.