Password reset wait for 24 hours

I did the change the exact way the phone asked but I was unable to change my password as I can’t remember the existing password. I tried all methods but then it said to wait for 24 hours and they’ll send a notification to my trusted mobile number. I know the Apple ID and the passcode but it’s simple didn’t allow me to change the password. I wanted to change as I can’t remember it. I’m trying to transfer data from my iPhone 8 to 13. Will I be able to change it after 24 hours and transfer the data. Iam eagerly waiting to use my new iPhone 13. The region I live doesn’t have apples support app.