pay the additional fee and mail the package to save you time and get your application in queue. Include both the receipts - old payment and the additional payment.
but I guess online payment doesn't allow you to pay the difference? Maybe I can pay the difference at a bank teller, but I don't feel very comfortable with two receipts of different pay methods.
BTW, I found the way to directly request a request, http://www.cic.gc.ca/english/helpcentre/answer.asp?q=619&t=4
I think I'll request a refund first. My documents are not ready yet so I can wait a little. Thanks for your suggestion anyway.
but I guess online payment doesn't allow you to pay the difference? Maybe I can pay the difference at a bank teller, but I don't feel very comfortable with two receipts of different pay methods.
BTW, I found the way to directly request a request, http://www.cic.gc.ca/english/helpcentre/answer.asp?q=619&t=4
I think I'll request a refund first. My documents are not ready yet so I can wait a little. Thanks for your suggestion anyway.
Yes you can pay the difference online. https://eservices.cic.gc.ca/epay/order.do?category=1
Check this one: Fee difference for Adult Grant of Citizenship - Processing and Right of Citizenship fees (if you already paid $400)
but I guess online payment doesn't allow you to pay the difference? Maybe I can pay the difference at a bank teller, but I don't feel very comfortable with two receipts of different pay methods.
BTW, I found the way to directly request a request, http://www.cic.gc.ca/english/helpcentre/answer.asp?q=619&t=4
I think I'll request a refund first. My documents are not ready yet so I can wait a little. Thanks for your suggestion anyway.
Don't request a refund just yet. CPC is returning the application with old fees surprisingly quick. It can be somewhere 1 week to 2 weeks after the package was received at CPC. You can then send the package with fee difference.