I have faced an unclear point, when i first sent my documents to CIO and gave my credit card details the amoount of 55o $was tranfered from my account to them , now i got my AOR letter and i want to submit my forms to London Visa office , should i make any other payment again and how, by credit card again?
Well you the $550 that you sent was Processing Free for principal applicant. When you send the documents to your local CHC office you need to pay the RPRF which is $490. Now, some people send it along with the documents. Some send it later when the local CHC requests. It's upto you when you want to send it. I sent it along with my application. A lot other send then the local CHC asks.
The final answer is YES. You have to pay $490 to your local CHC office.
you dont have to pay Permanent Residence Fee (RPRF CAD 490) now. they will ask you after initial approval from local visa office. usually PRRF fee request comes with medicals.
but no need to send it now.