When I started reading this, I anticipated both Instagram and Google. They’re both notorious in banning accounts, and there’s nothing you can do (except maybe g

When I started reading this, I anticipated both Instagram and Google. They’re both notorious in banning accounts, and there’s nothing you can do (except maybe get useless template responses in the case of Instagram). It seems like your phone number is the main problem here. It’s tainted and is on some very bad lists. You should get a new number (or two) and transition over. It may also be helpful to get new phones and set them up afresh as much as possible.