Sorry I couldn't respond to this message earlier. We were in similar situation but we chose to pay again and submit the new receipt for RPRF. If you check my post right after the one you quoted, you will get the answer.@sg02 Please I’m in same situation as you, my application was just reopened after the fees had been refunded, but I already opened another application and paid the fees again, now IRCC is requesting for receipt of the old application i.e they want me to repay and attach receipt . Should I attach The receipt of the second (new) application and write a letter that they should close it. Kindly assist. Thanks.
As soon as we send the payment receipts to IRCC, they attach / link those payments to particular applications. Assuming you have already sent the payment receipt for second application, it must have already been linked by now.
Its a long process to get that second application withdrawn and then get the refund for RPRF. I doubt they will re-link that second application's RPRF payment to your first (old) application. Don't worry about it, you will eventually get that money refunded.
Rather than that, focus on your re-opened application. I would suggest you to pay the RPRF right away and send the receipt for your re-opened application because based on my experience this application will get processed much faster (like it happened in my case).