http://www.immigration-quebec.gouv.qc.ca/en/informations/mon-projet-quebec/reminder.html
After June 13, 2016
If you did not pay your application fees on June 13, 2016, you can access your account to pay them online. You will have until July 12, 2016, to make your payment online or to send your payment by mail to the Ministère (the date of receipt of payment will constitute proof);
A few days after receipt of payment for your application, you will receive a message in Mon projet Québec confirming that your application has been opened.