Yes my GC key still shows approved and passed. I have been checking it daily. The representative seemed confused. He said a bulk email was sent on April 19th and then he also said it could be a follow up email for the Jan 5th email. He even told me my representative form is not included in my application, but later he said he made an error and it was there.There has been a case which I read in this forum where the same email went to Spam Box & person did not look. When they found out, 15 days had passed.
I believe they raised a webform for the same and informed IRCC. It worked for them.
You can try doing the same. Also raise a VO specific webform and inform them everything in detail. If your GC key application status still shows Submitted or Approved, it shouldn't be cancelled IMO.