Not sure if the CEC is similar to that of Family Sponsorship because normally the V.O of the PA does the approval and in your case is in Canada. Am sure they did send those their robotic emails without crosschecking the situation, might be an error on their side. If you, I would call and plead with my MP to contact IRCC notify them on attempts made to update your status. IRCC always pick their calls.
However, if you running out of time and not ready for their games. I will suggest you write a simple formal letter explaining the situation, take screenshot of your weforms sent If you have them. Include the relevant PPR documents and send away to ACCRA.
But try your MP and see might get fortunate and get a reply on the best move to make.