How to get Passport back after withdrawing refugee claim?

[Rubymultani]

Hi! I applied for Refugee claim few years ago and I recently got PR through Family class sponsorship and I withdrew my claim, I didn’t have hearing or anything. When I applied for refugee, IRB seized my passport in Vancouver region. Now I have to go home cause my mother is really sick and admitted in hospital but after calling Ircc so many times I haven’t received any response how to get my passport back? Can someone please guide me how can i receive my passport back asap with the given circumstances.