I am nt sure which forum; hopefully senior can help you. I think its better, at the moment, to send restoration along with extension to remain in canada with the letter you received... http://www.cic.gc.ca/english/information/applications/visitor.aspfemago24 said:. So do I have to use the imm5710 form? If I do, do I have to attached the letter from cic that they received my application or doesn't have to? Where do I send the application for open work permit? I read some of the forum sometimes they get refused because they do not locate the application if it's not together with the sponsorship application?