consult! My wife and children arrived in Canada in 2003 and obtained a maple leaf card. Now I am settled in Canada and the maple leaf card has been successfully renewed, but my wife and children have failed to meet the 730-day residence requirement within five years, so their maple leaf card has expired. I... Consult!

My wife and children applied to join Canada in 2003 and obtained proof of citizenship. At this stage, I am settled in Canada and my proof of citizenship has been successfully updated, but my wife and children have failed to meet the 730-day residence requirement within five years, and their proof of citizenship has expired. What measures should be taken to enable them to maintain or regain immigration status so that the two parties can communicate easily?

Thank you ~

Thank you for your answer. I have the following questions to add:

My wife and children now live in China and stay in Canada for five consecutive years, only about three months in total, because every year they only come to see me on holidays every year

I also want to help them apply for immigration again, but they are currently unidentified and their maple leaf card has expired. What special materials are needed to apply for reunion immigration? Or just submit the materials like ordinary immigrants. Do you have to ask the Canadian embassy in China to issue documents such as an official certificate of refusal to provide "return to Canada travel documents"?

Thanks in advance~