+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
People are allowed to flagpole.
That letter seems suspicious to me o_O
Allowed to maybe but definitely discouraged by CBSA as they do not see it as their responsibility to process every single variation of permit especially those can be processed within the country such as a PGWP. Even more so with the permits such as PGWP ability to work or stay pending a decision .