+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Can you please provide their customer care details - email/phone/ other option?

By phone. Call the IRCC Call Centre (1-888-242-2100), from within Canada only, Monday to Friday, 8am to 4pm local time, except for statutory holidays). To speak to an agent, navigate through the automated messages by pressing 3-4-1-0