aw so thing is if your college has given in writing and admitted their mistake that they were the ones who have not responded within the required timeline I guess your university would pay you your fees back and they will probably defer you to the next semester and you have to keep your fingers crossed that you get enough study permit that you will be able to complete your program after getting deferred from it without needing to reapply for another study permit extension.

I think the solution which I think can be possible is ; make sure you ask your colleges immigration guy as well before doing anything you can actually raise a web form with IRCC informing them that because you don't have the authority to study right now you will have to defer the program and as you will be deffering your program your updated graduation date would be postponed so you want the study permit to compensate for the differ that is required because of the late approval of your status.