The Government of Canada has multiple toll-free numbers (CIC is included) where you can call in case you are having a doubt. The issue is that those numbers are only accessible within the country.
Katapulta gives you a way to call to CIC and other toll-free government numbers. There is no better answer than the one that comes from the source.
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|CIC Call Center number
If the connection fails, please keep trying. CIC call center is very busy.
You can call any toll free number In Canada.