Follow the instructions on the form Fees for Immigration Services, Approval of Rehabilitation (IMM 5310). PDF
If the Fees for Immigration Services, Approval of Rehabilitation (IMM 5310) is attached, follow the instructions on the form. If it is not attached, consult the Canadian visa office responsible for the area in which you live.
Processing fees are not refundable regardless of the final decision on your application. If your application is refused and you decide you want to apply again, a new processing fee will be required.
If you do not enclose the required fee or if your credit card payment is refused, your application will not be processed. It will be returned to you with a letter requesting the correct payment. If you pay too much money, your application will be processed and a refund for the overpayment will be mailed to you within four (4) to six (6) weeks after the refund request is processed.
See the section Coming to, or Remaining in Canada Without Approval of Rehabilitation.
Do not send a processing fee. An officer will review the form and advise how you should proceed.