although it doesn't mention about that you can change information in your application, I think you still can call them and ask what you should do in your case.
here is the telephone number if you want to make a phone call in Toronto, 416-973-4444. if you want to speak with an agent, please call during 8am-4pm, and press 0 for the selection of speaking to an agent.
Or, you can call the Beijing embassy if this is where your application submited. Sometimes directly contacting a person or institution which dealing with your case is more effective.
good luck!
here is the telephone number if you want to make a phone call in Toronto, 416-973-4444. if you want to speak with an agent, please call during 8am-4pm, and press 0 for the selection of speaking to an agent.
Or, you can call the Beijing embassy if this is where your application submited. Sometimes directly contacting a person or institution which dealing with your case is more effective.
good luck!