If you have access to your EE portal you can revoke their access. Initially before submitting the access to my Application was linked to the consultant. I wanted to have access on my own to see if there are any updates. So the consultant sent me this link.Hey, sorry for a late reply ! I created EE profile myself , but I used consultant services for actual PR application. Not sure if it’s a good idea - in that case you won’t have access to your application and can only rely on consultant to keep you updated .
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/partners-service-providers/authorized-paid-representatives-portal/user-guide.html#remove
you can follow the steps there, and you will get the access back.