+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Even I haven't received a response yet. Sent them a mail on 24th after receiving OPR, then sent another mail again today. No response yet as to step 1.
 
Please update on this thread if you get the mail for step 1. Any idea how long it is taking to be done with the entire process, ie getting stamped passport returned?