Hi RippleEffect They have clearly stated the following an email so better do as who know what are they upto for your background check
IMPORTANT :
"To ensure that your application is correctly processed, you must advise us immediately, in writing, either by e-mail, mail of any change of marital or common-law status (marriage, separation, death, etc.), the birth of a child or a pregnancy. You must also inform us of any change of professional situation (new job, unemployment, studies, work term or internship, etc.) for yourself and any person 18 years old or over who are included in your application.
If you change your mailing address please complete and return the attached form as soon as possible . DO NOT send us the attached form if your mailing address has NOT changed.
Please understand that we will NOT acknowledge receipt of your letters, but we will contact you if any action is required.
When we are ready to issue your visa, your sponsor will be asked to pay the Right of Permanent Resident Fee (RPRF), if it applies and if it has not already been paid. The RPRF must be paid in Canada, not to our office. "