Cox port data throttle question

Multiple people in my house are trying to play the same game. The game needs to communicate over ports:

TCP 54992-54994, 55006-55007, 55021-55040

From working at spectrum/charter in the past, I know there is a throttle limit for data when it comes to uncommon ports. I know service reps also have no idea what I am talking about if I were to call them. Most of our "head end" techs were unaware of this as well. My question is, who do customers contact or how do we convey to our ISP that data over certain ports shouldn't be throttled when multiple users need to use them?