You in too deep now mistreated girl, sorry you feel that way but this ship has already sailed off the dock. I really hate these situations, if I could save one penny for everytime I see people on this forum in this exact same situation id have one thousand dollars by now.
Count your losses, move on or keep calling IRCC and CBSA they’ll tell you what they can or cannot do, but from my knowledge that’s it once they received PR.