Exactly the same happened to me last May. I'm a full time carer for a blind invalid parent and am 3 hours away. There was no way I could attend many games in person, but all 19 tickets were listed and used by blues.
I got an email and call from the ticket office saying I would only be entitled to a flexi if the same happened this season. I could see the writing on the wall and didn't renew. I tried all the avenues, but ultimately, they wanted me out and those 5 games via United, Liverpool, Chelsea, Arsenal and Spurs back so they can sell them to tourists for daft money and also milk them whilst at the campus. They couldn't give a feck about me having the other 14 games as they can't extort day-trippers in those games. The reality is that they hate the idea of fans having those games as part of a cheap seasoncard and would rather sell them to whatever rich fecker they can find.
In short, the club is just a business and they don't give a toss about anyone. Once the facial recognition kicks in, the burner phone work around will be useless and thousands more will be ejected. Eventually they will conjure a plan to not have any of those 5 big games included in your seasoncard if they believe they can sell them as individual seats to 'visitors'.
The sad reality is that Manchester City Football Club, is now just a front for a money grabbing sporting franchise.