I have other thoughts in mind but I'll have my gcms notes by Dec 2, i'll share mine from the point of view of an applicant who paid RPRF upon request of CICyelena said:sorry to dissapoint you, but in the GCMS notes, under payments ( rprf included ) there is also a due date., so I think they acctally ask you to pay this fee on that date, and in reallity it doesnt mean anything about your application.
I have a due date in mine about RPFR on 2015/11/07 and I think that this would have been the date they would notifiy that I have to pay RPRF ( I paid everything upfront so no need to notify me)