I posted this on the June thread and it dawned on me that I should be posting here not there (a case of being closer to your adoptive family than your birth family... lol), so I copied it incase anyone needs this information.
....
If you didn't pay the
RPRF when you submitted your application and you haven't received a request for payment and you're getting impatient, know that you can pay it upfront at anytime using this link *(I paid October 11th)*
https://eservices.cic.gc.ca/ols/register.do
Once you pay, raise a CSE and upload a payment receipt. Using this link
https://secure.cic.gc.ca/enquiries-...&AspxAutoDetectCookieSupport=1&wbdisable=true
You should get a response from CIC in about a week that your payment receipt has been received and transferred to the responsible department. *(I got the reply October 17th)*
......
Two weeks later I moved to IP2 (eligibility & Criminality passed); November 1st/2nd.