You said they opened your application on July 12. This means that your 12 month estimated waiting time began on July 12. They don't count the time it took for your application to get there in the mail, or how long it sat around at their office before they started to review it. So according to COC, it's been just over 1 month, not 3.
Regardless, calling CIC might get you your file number, but if you already can check the status of your application in other ways, that file number pretty much means nothing. Updates will come on your application in their own time, not on someone else's timeline. As frustrating as it is, the fact that someone else's app is moving faster than yours has no bearing on how they process your application.
You can keep calling CIC if you really want, but I suggest you figure out how to be patient. Your AOR and bio request and medical request will come when they come.