You have to send the ENTIRE application together! That includes both the sponsor papers and the applicant papers, plus all proof. Your wife can send them to Mississauga.
Spouses, common-law or conjugal partner and dependent children: if you are sending it via Canada Post.
CPC Mississauga
P.O. Box 3000, Station A
Mississauga, ON
L5A 4N6
Courier address (no public drop-offs) here if using a courier like fed ex, ups, Dhl, etc....
2 Robert Speck Parkway,
Suite 300
Mississauga, ON
L4Z 1H8
Fax: 905-803-7392