Hi,
They must have asked you some basic information about you and dependent applicants (if there are any). Please submit those details in reply to the same email. Please be sure to submit the same response that you have provided to them earlier in your application like your height in cm & eye color. And then wait for them to confirm these details and process your application.
Yes, they asked following informations
Name as it appears on your passport:
✓ Height in centimetres:
✓ Eye Colour:
✓ UCI:
✓ Personal email (one for the whole family):
✓ Current residential address (apt #, street #, street name, city, province and postal
code):
✓ Personal phone number:
✓ Original entry date (YYYY/MM/DD):
✓ Date of last time you entered Canada (YYYY/MM/DD):
✓ Location of last entry (which Canadian border or Canadian airport):
✓ Are you currently inside Canada (yes or no):
✓ If you are not inside Canada
o When is your expected return date (YYYY/MM/DD):
o In which country are you currently located:
But I never been in Canada. So, what should I answer those questions which is related inland applicants.