The worst part for me was that I didn't receive support from Canada in time. I received it later, after I managed to get media attention. For months, I was struggling to get any attention, even from my MP. She apologized later because apparently there was some mistake on her assistant's part. For months, I felt completely abandoned by Canada, and I'm very worried that this might happen to someone else.
In short, what happened is that I had my citizenship application being processed at the time when I was sentenced in Russia. First, I was obviously arrested; then I was sentenced. I informed IRCC about this, which IRCC basically ignored, and my first citizenship ceremony was cancelled. Then I received a letter half a year later saying that I might not become a citizen because I'm a criminal in Russia.