How can I can complain to Canada Customs about the Exam taking too long?
Here is the direct CBSA contact link: http://www.cbsa-asfc.gc.ca/contact/com-eng.html
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NOTE: All details pertaining to CARM R2 processes are based on the current information available at the time of writing. As this is subject to change, it’s recommended you periodically check in with the CBSA or your customs broker.